{"id":5535,"date":"2026-05-18T07:14:46","date_gmt":"2026-05-18T07:14:46","guid":{"rendered":"https:\/\/thade-gerdes.de\/uncategorized-en-gb\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/"},"modified":"2026-10-27T14:41:26","modified_gmt":"2026-10-27T14:41:26","slug":"planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction","status":"publish","type":"post","link":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/","title":{"rendered":"Planning Site Investigations Properly: These Mistakes Will Cost You Money During Construction"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"5535\" class=\"elementor elementor-5535 elementor-4151\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-50947f0 e-flex e-con-boxed e-con e-parent\" data-id=\"50947f0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-f8d06a6 e-con-full e-flex e-con e-child\" data-id=\"f8d06a6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-219994a elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"219994a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;,&quot;h4&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_widescreen&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_laptop&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet_extra&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__219994a\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__219994a\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__219994a\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3d2708 elementor-widget elementor-widget-text-editor\" data-id=\"a3d2708\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Most errors in site investigation do not occur on the construction site. They arise during the planning phase\u2014insufficient investigation, exploration that is too shallow, or the selection of the wrong methods. This leads to incorrect assumptions about the site conditions.   <\/span><\/p><p><span style=\"font-weight: 400;\">The consequences don&#8217;t become apparent until later. Settlement, cracks, or moisture problems arise even though the structure was planned long ago. The real problem, then, lies not in the soil, but in how the site investigation was planned.  <\/span><\/p><p><span style=\"font-weight: 400;\">In this article, we&#8217;ll show you how to properly plan a site investigation, determine the appropriate scope, and avoid common mistakes from the start.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90ea75a elementor-widget elementor-widget-text-editor\" data-id=\"90ea75a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>Key Points on Site Investigation at a Glance<\/b><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A site investigation provides the foundation for planning your construction project, as it reliably determines the bearing capacity, layers, and properties of the soil.<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The scope, depth, and methods of the investigation must be appropriate for the site and the structure so that all relevant parameters and risks are fully assessed.<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Too few test points, insufficient depth of investigation, or incorrect methods can lead to an inaccurate assessment of the subsurface and cause risks associated with the building site to go undetected.<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Missing or incomplete information about the building site often leads to settlement, cracks, or problems with groundwater, resulting in high additional costs during construction.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-90f2e5d e-con-full e-flex e-con e-child\" data-id=\"90f2e5d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4fca0ee elementor-widget elementor-widget-heading\" data-id=\"4fca0ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">1. Why a Site Investigation Determines the Foundation of Your Building<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-312fbb0 elementor-widget elementor-widget-text-editor\" data-id=\"312fbb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">A site investigation forms the basis for every decision regarding your building\u2019s foundation. It provides the data used to evaluate the bearing capacity and behavior of the soil under load. Only then does it become clear how the subsoil reacts to the loads imposed by the structure and what its actual properties are.  <\/span><\/p><p><span style=\"font-weight: 400;\">Based on this, a decision is made as to which type of foundation is appropriate. If the soil is stable and uniform, a shallow foundation is often sufficient. If, on the other hand, the soil is unstable or consists of varying layers, a deep foundation is required.  <\/span><\/p><p><span style=\"font-weight: 400;\">If this information is missing or incomplete, the establishment of the company cannot be determined with certainty. Instead of reliable results, planning is based on an uncertain foundation. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38197d5 elementor-widget elementor-widget-heading\" data-id=\"38197d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2. How Many Tests Your Building Site Really Needs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c16c676 elementor-widget elementor-widget-image\" data-id=\"c16c676\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Conrad-Combi-300_Anlage-fuer-Trockenbohrungen-und-Spuelbohrungen-1-scaled.jpg\" class=\"attachment-full size-full wp-image-5536\" alt=\"Drilling rig and emergency vehicles conducting soil investigation at a construction site\" srcset=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Conrad-Combi-300_Anlage-fuer-Trockenbohrungen-und-Spuelbohrungen-1-scaled.jpg 2560w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Conrad-Combi-300_Anlage-fuer-Trockenbohrungen-und-Spuelbohrungen-1-300x200.jpg 300w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Conrad-Combi-300_Anlage-fuer-Trockenbohrungen-und-Spuelbohrungen-1-1024x683.jpg 1024w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Conrad-Combi-300_Anlage-fuer-Trockenbohrungen-und-Spuelbohrungen-1-768x512.jpg 768w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Conrad-Combi-300_Anlage-fuer-Trockenbohrungen-und-Spuelbohrungen-1-1536x1024.jpg 1536w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Conrad-Combi-300_Anlage-fuer-Trockenbohrungen-und-Spuelbohrungen-1-2048x1365.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c1209e elementor-widget elementor-widget-text-editor\" data-id=\"7c1209e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">There is no set number of surveys. It always depends on the soil conditions and the planned construction project. <\/span><\/p><p><span style=\"font-weight: 400;\">The subsoil is examined at several points through drilling and probing. This is the only way to obtain an accurate picture of the actual conditions underground. The goal is to create a continuous subsoil profile covering the entire area. It shows the composition of the individual soil layers and how they behave beneath the structure.   <\/span><\/p><p><span style=\"font-weight: 400;\">If the soil has a uniform structure, just a few test points are often sufficient. The layers can be reliably mapped. The situation is different with variable soils. Different layers, inclusions, or soft zones require significantly more testing to ensure that all relevant areas are accounted for.   <\/span><\/p><p><span style=\"font-weight: 400;\">If too few points are surveyed, the actual stratigraphic profile remains incomplete. Critical areas in the subsoil go undetected, and the assessment of the foundation soil is based on incomplete information. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f11f94 elementor-widget elementor-widget-heading\" data-id=\"6f11f94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">3. How deep you need to investigate the subsoil to avoid risks<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8999321 elementor-widget elementor-widget-text-editor\" data-id=\"8999321\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The depth of exploration determines whether critical layers are detected at all.<\/span><\/p><p><span style=\"font-weight: 400;\">Site investigations assess soil conditions at various depths. The key factor here is not the surface, but the area beneath the foundation. <\/span><\/p><p><span style=\"font-weight: 400;\">That is precisely where the loads from the structure are transferred into the ground.<\/span><\/p><p><b>That&#8217;s what matters when it comes to the depth of exploration<\/b><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The load-bearing layers must be fully documented<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The underlying zones also influence settlement behavior<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The appropriate depth depends on the size and load of the structure, as well as the soil conditions encountered.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Groundwater and soft layers further alter the behavior<\/span><p> <\/p><\/li><\/ul><p><b>What happens if the level of exploration is too low?<\/b><\/p><p><span style=\"font-weight: 400;\">If the investigation does not go deep enough, critical areas underground will remain hidden.<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Soft layers or layers prone to settlement are not detected<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The load-bearing capacity is overestimated<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The building is being designed on the wrong basis<\/span><p> <\/p><\/li><\/ul><p><span style=\"font-weight: 400;\">The problem doesn&#8217;t become apparent until later. Settlement occurs even though the surface layers appear to be stable. What matters is not what is visible on the surface, but what lies beneath the foundation.  <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-03f65d7 elementor-widget elementor-widget-heading\" data-id=\"03f65d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4. Which site investigation methods yield truly meaningful results<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-037db15 elementor-widget elementor-widget-image\" data-id=\"037db15\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1032\" height=\"640\" src=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2025\/12\/Baugrunduntersuchung-Naturschutzgebiet.png\" class=\"attachment-full size-full wp-image-5450\" alt=\"Aerial view of a site investigation in the middle of a nature reserve; the equipment is mounted on steel plates laid out on the ground\" srcset=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2025\/12\/Baugrunduntersuchung-Naturschutzgebiet.png 1032w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2025\/12\/Baugrunduntersuchung-Naturschutzgebiet-300x186.png 300w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2025\/12\/Baugrunduntersuchung-Naturschutzgebiet-1024x635.png 1024w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2025\/12\/Baugrunduntersuchung-Naturschutzgebiet-768x476.png 768w\" sizes=\"(max-width: 1032px) 100vw, 1032px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f74cdb2 elementor-widget elementor-widget-text-editor\" data-id=\"f74cdb2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">No single method provides a complete picture of the subsoil. Each method captures only certain properties of the soil. Only by combining several methods can a well-founded assessment be made.  <\/span><\/p>\n\n<b>These methods are used in geotechnical investigations<\/b>\n\n<p style=\"margin-top: 25px; margin-bottom: 5px;\"><b>Drilling<\/b><\/p>\n<ul style=\"margin-top: 0px; margin-bottom: 20px; list-style-type: disc; padding-left: 40px; color: #333333;\">\n    <li style=\"margin-bottom: 5px;\"><span style=\"font-weight: 400; color: #333333;\">collect soil samples from various depths<\/span><\/li>\n    <li style=\"margin-bottom: 5px;\"><span style=\"font-weight: 400; color: #333333;\">illustrate the geological structure and the sequence of strata<\/span><\/li>\n    <li style=\"margin-bottom: 0px;\"><span style=\"font-weight: 400; color: #333333;\">enable laboratory analyses of properties and composition<\/span><\/li>\n<\/ul>\n\n<p style=\"margin-top: 0px; margin-bottom: 5px;\"><b>Pile Driving Tests<\/b><\/p>\n<ul style=\"margin-top: 0px; margin-bottom: 20px; list-style-type: disc; padding-left: 40px; color: #333333;\">\n    <li style=\"margin-bottom: 5px;\"><span style=\"font-weight: 400; color: #333333;\">measure the resistance of the subsoil<\/span><\/li>\n    <li style=\"margin-bottom: 5px;\"><span style=\"font-weight: 400; color: #333333;\">provide information on packing density and load-bearing capacity<\/span><\/li>\n    <li style=\"margin-bottom: 0px;\"><span style=\"font-weight: 400; color: #333333;\">deliver quick results right on the spot<\/span><\/li>\n<\/ul>\n\n<p style=\"margin-top: 0px; margin-bottom: 5px;\"><b>Pressure Soundings<\/b><\/p>\n<ul style=\"margin-top: 0px; margin-bottom: 25px; list-style-type: disc; padding-left: 40px; color: #333333;\">\n    <li style=\"margin-bottom: 5px;\"><span style=\"font-weight: 400; color: #333333;\">continuously measure soil strength at various depths<\/span><\/li>\n    <li style=\"margin-bottom: 5px;\"><span style=\"font-weight: 400; color: #333333;\">accurately show transitions between different layers<\/span><\/li>\n    <li style=\"margin-bottom: 5px;\"><span style=\"font-weight: 400; color: #333333;\">enable a detailed assessment of load-bearing capacity<\/span><\/li>\n    <li style=\"margin-bottom: 0px;\"><span style=\"font-weight: 400; color: #333333;\">reach greater depths than dynamic probing<\/span><\/li>\n<\/ul>\n\n<b>Why the combination is crucial<\/b>\n\n<p><span style=\"font-weight: 400;\">Boreholes reveal what lies beneath the ground. Dynamic or static load tests show how the soil behaves. Only when combined do they provide a reliable overall picture of the building site.  <\/span><\/p>\n\n<p><span style=\"font-weight: 400;\">If only one method is used, important parameters remain unclear. The properties of the subsoil are not fully characterized, and the results cannot be reliably evaluated. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5bb24c elementor-widget elementor-widget-heading\" data-id=\"a5bb24c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">5. These 3 mistakes in site investigation lead to incorrect assumptions<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a27585b elementor-widget elementor-widget-text-editor\" data-id=\"a27585b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Errors in site investigation rarely occur by chance. They almost always follow the same pattern. Inadequate planning results in a lack of important information about the site. This is precisely what leads to incorrect assumptions and risky decisions regarding the structure.   <\/span><\/p>\n\n<b>These Are the Most Common Mistakes in Site Investigation<\/b>\n\n<ul style=\"margin-top: 25px; margin-bottom: 25px;\">\n    <li style=\"font-weight: 400; margin-bottom: 20px;\">\n        <b>Insufficient investigations<\/b><br\/> Important areas of the subsoil are not assessed<br\/> Layers remain undetected, and the wrong foundation is chosen\n    <\/li>\n    <li style=\"font-weight: 400; margin-bottom: 20px;\">\n        <b>Insufficient depth of investigation<\/b><br\/> Load-bearing and non-load-bearing layers are incorrectly assessed<br\/> The actual bearing capacity of the soil is not correctly evaluated\n    <\/li>\n    <li style=\"font-weight: 400; margin-bottom: 0px;\">\n        <b>Inappropriate methods<\/b><br\/> Key data on bearing capacity and soil behavior are missing<br\/> The subsoil is assessed only near the surface\n    <\/li>\n<\/ul>\n\n<b>Why These Errors Are So Critical<\/b>\n<p><span style=\"font-weight: 400;\">All three errors lead to the same result: the site conditions are misjudged. The design is then based not on actual conditions, but on incomplete data. This affects the bearing capacity, settlements, and the behavior of the soil under load.  <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb0cdc6 elementor-widget elementor-widget-heading\" data-id=\"eb0cdc6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">6. What Impact Does the Lack of Site Data Have on Costs and the Construction Process?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-357b0fc elementor-widget elementor-widget-text-editor\" data-id=\"357b0fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Missing or incomplete site data rarely goes without consequences. The problems usually don&#8217;t become apparent until the construction project is already underway or has been completed. That is precisely what makes them so critical.  <\/span><\/p>\n\n<b>Typical Consequences of Inadequate Site Investigation<\/b>\n\n<ul style=\"margin-top: 25px; margin-bottom: 25px; list-style-type: disc; padding-left: 40px; color: #333333;\">\n    <li style=\"margin-bottom: 15px;\">\n        <span style=\"font-weight: 400; color: #333333;\"><b>Settlement in a structure:<\/b> The ground gives way under the load, causing the building to settle unevenly.<\/span>\n    <\/li>\n    <li style=\"margin-bottom: 15px;\">\n        <span style=\"font-weight: 400; color: #333333;\"><b>Cracks in walls and foundations:<\/b> Stress is caused by different movements in the subsoil.<\/span>\n    <\/li>\n    <li style=\"margin-bottom: 15px;\">\n        <span style=\"font-weight: 400; color: #333333;\"><b>Water damage caused by groundwater:<\/b> Moisture seeps in because the soil conditions were misjudged.<\/span>\n    <\/li>\n    <li style=\"margin-bottom: 0px;\">\n        <span style=\"font-weight: 400; color: #333333;\"><b>Mold growth caused by settlement cracks:<\/b> Moisture penetrates through barely noticeable cracks in the masonry because the building has settled unevenly.<\/span>\n    <\/li>\n<\/ul>\n\n<b>Why Costs Are Rising So Fast<\/b>\n<p style=\"margin-top: 25px; margin-bottom: 10px; font-weight: 400; color: #333333;\">If problems are not identified until the construction phase, making adjustments is time-consuming:<\/p>\n\n<ul style=\"margin-top: 0px; margin-bottom: 25px; list-style-type: disc; padding-left: 40px; color: #333333;\">\n    <li style=\"margin-bottom: 12px;\"><span style=\"font-weight: 400; color: #333333;\">Foundations must be reinforced or retrofitted with piles.<\/span><\/li>\n    <li style=\"margin-bottom: 12px;\"><span style=\"font-weight: 400; color: #333333;\">Construction schedules are being delayed due to additional work<\/span><\/li>\n    <li style=\"margin-bottom: 12px;\"><span style=\"font-weight: 400; color: #333333;\">Trades must be realigned<\/span><\/li>\n    <li style=\"margin-bottom: 0px;\"><span style=\"font-weight: 400; color: #333333;\">Delays and extensions of the construction period result in incalculable additional costs<\/span><\/li>\n<\/ul>\n\n<p><span style=\"font-weight: 400;\">The highest costs arise when damage becomes apparent only after completion. Renovations then directly affect the building\u2019s structure and result in significant additional costs. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0750d53 elementor-widget elementor-widget-heading\" data-id=\"0750d53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">7. How to Properly Incorporate the Results of the Site Investigation into Your Planning<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f053b8 elementor-widget elementor-widget-text-editor\" data-id=\"8f053b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Site investigation does not end with field testing. It consists of three key steps: conducting the tests, evaluating the results, and formulating an appropriate foundation recommendation. <\/span><\/p><p><span style=\"font-weight: 400;\">Only when all the data is available and correctly interpreted can a solid foundation for planning be established.<\/span><\/p><p><span style=\"font-weight: 400;\">The results must then be specifically incorporated into the design. This includes the selection of the foundation type, the sizing of the foundation, and how to address special soil conditions such as groundwater or soft layers. <\/span><\/p><p><span style=\"font-weight: 400;\">This is exactly where the difference lies. The data alone is not enough. What matters is how it is analyzed and translated into technical measures.  <\/span><\/p><p><span style=\"font-weight: 400;\">This requires experience in site evaluation and foundation engineering. Only then can the correct conclusions be drawn from the investigation results and translated into a safe design. <\/span><\/p><p><span style=\"font-weight: 400;\">An experienced specialist firm can identify early on what measures are necessary and how risks associated with the building site can be specifically addressed. This is exactly where Thade Gerdes comes in, guiding building owners from the initial assessment through to a practical foundation recommendation. <\/span><\/p><p><span style=\"font-weight: 400;\">If you want to set up your site investigation correctly from the start, <\/span><a href=\"https:\/\/thade-gerdes.de\/en\/contact\/\"><span style=\"font-weight: 400;\">request a site investigation directly<\/span><\/a><span style=\"font-weight: 400;\">to have your project professionally reviewed.<\/span><\/p><p><b>Why You Should Conduct Your Site Investigation with Thade Gerdes<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e581d7 elementor-widget elementor-widget-image\" data-id=\"9e581d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Kopie-von-BG_R2_Baugrunderkundung-auf-Baltrum_Conrad-Combi-300-scaled.jpg\" class=\"attachment-full size-full wp-image-5414\" alt=\"Drilling rigs and construction vehicles during dry drilling for geotechnical investigation on a sandy site.\" srcset=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Kopie-von-BG_R2_Baugrunderkundung-auf-Baltrum_Conrad-Combi-300-scaled.jpg 2560w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Kopie-von-BG_R2_Baugrunderkundung-auf-Baltrum_Conrad-Combi-300-300x200.jpg 300w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Kopie-von-BG_R2_Baugrunderkundung-auf-Baltrum_Conrad-Combi-300-1024x683.jpg 1024w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Kopie-von-BG_R2_Baugrunderkundung-auf-Baltrum_Conrad-Combi-300-768x512.jpg 768w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Kopie-von-BG_R2_Baugrunderkundung-auf-Baltrum_Conrad-Combi-300-1536x1024.jpg 1536w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/Kopie-von-BG_R2_Baugrunderkundung-auf-Baltrum_Conrad-Combi-300-2048x1365.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f3bde7 elementor-widget elementor-widget-text-editor\" data-id=\"5f3bde7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Accurate site investigation depends entirely on experience, technology, and thorough analysis. This is exactly where Thade Gerdes comes in. <\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>More than 125 years of experience in the field of geotechnical engineering<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">For more than a century, the company has been specializing in building sites, subsoil, and foundation engineering. This knowledge, gained from numerous projects, is directly incorporated into your site investigation.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>Gentle Methods for Sensitive Construction Environments<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">Modern equipment ensures that drilling and probing are carried out with as little vibration as possible. This is particularly important in densely built-up areas or near existing buildings.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>Site Investigation for a Wide Range of Applications<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">Whether it\u2019s a traditional onshore construction project, projects near the coast, or work in aquatic environments, our site investigation services are tailored to the specific conditions and carried out with technical precision.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>A Structured Process for a Quick Project Launch<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">From the initial consultation through the planning of the surveys to their execution. Every step is coordinated so that your construction project can begin without delays.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>Transparent Services and Cost Estimates<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">You\u2019ll receive an overview of which tests are being conducted and what results are available. This allows you to plan the scope of your site investigation.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>Reliable execution according to fixed schedules<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">The site investigation is carried out in coordination with your construction schedule. Deadlines are met so that subsequent work can begin without any delays.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>Careful Handling of Soil and Groundwater<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">Work is carried out in accordance with applicable standards regarding the handling of sensitive areas such as groundwater and the subsoil.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>A dedicated point of contact throughout the entire project<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">You\u2019ll always have a direct point of contact who is familiar with the status of the site investigation and can provide specific answers to your questions.<\/span><\/p><p><span style=\"font-weight: 400;\">\u2714 <\/span><b>Experience ranging from single-family homes to large-scale projects<\/b><b><br\/><\/b><span style=\"font-weight: 400;\">Whether it\u2019s a small construction project or a complex undertaking, the site investigation is tailored to the scope, requirements, and site-related risks.<\/span><\/p><p><span style=\"font-weight: 400;\">Get your site investigation right from the start and <\/span><a href=\"https:\/\/thade-gerdes.de\/en\/contact\/\"><span style=\"font-weight: 400;\">request your site investigation now<\/span><\/a><span style=\"font-weight: 400;\">to ensure your construction project is supported by expert knowledge.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0aef136 elementor-widget elementor-widget-heading\" data-id=\"0aef136\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">8. Conclusion: Why a Thorough Site Investigation Protects Your Construction Project<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42a1e9e elementor-widget elementor-widget-text-editor\" data-id=\"42a1e9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">A site investigation determines whether your construction project is based on a solid foundation or on assumptions. The scope, depth, and methods must be precisely tailored to the site conditions and the project. <\/span><\/p><p><span style=\"font-weight: 400;\">Insufficient investigations, an inadequate level of detail, or inappropriate methods can lead to an incorrect assessment of the subsoil. The consequences often do not become apparent until later and result in significant additional costs. <\/span><\/p><p><span style=\"font-weight: 400;\">A professionally planned site investigation, on the other hand, provides reliable data. It clarifies bearing capacity, soil behavior, and potential risks, and enables the selection of a safe foundation system. <\/span><\/p><p><span style=\"font-weight: 400;\">This is exactly where experience sets itself apart from uncertainty. Those who properly assess the building site can identify early on what measures are necessary and how risks can be specifically addressed. <\/span><\/p><p><span style=\"font-weight: 400;\">If you want to ensure your construction project is built on a solid foundation from the very beginning, submit your <\/span><a href=\"https:\/\/thade-gerdes.de\/en\/contact\/\"><span style=\"font-weight: 400;\">request for a site investigation<\/span><\/a><span style=\"font-weight: 400;\"> and have the key parameters of your building site professionally assessed.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c5d772e e-flex e-con-boxed e-con e-parent\" data-id=\"c5d772e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-96fce2f elementor-widget elementor-widget-heading\" data-id=\"96fce2f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">9. FAQ: Frequently Asked Questions About Site Investigation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2d0ab elementor-widget elementor-widget-n-accordion\" data-id=\"0c2d0ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1270\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1270\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What exactly is examined during a site investigation? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1270\" class=\"elementor-element elementor-element-5d19418 e-con-full e-flex e-con e-child\" data-id=\"5d19418\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d5f8730 p-top elementor-widget elementor-widget-text-editor\" data-id=\"d5f8730\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">During a site investigation, the properties of the subsoil are systematically assessed. This includes the nature of the soil, its bearing capacity, the layers in the subsoil, and the effects of groundwater. <\/span><\/p><p><span style=\"font-weight: 400;\"><br><\/span><span style=\"font-weight: 400;\">The methods used include drilling with soil sampling, dynamic load testing, and static load testing. The results are analyzed in the laboratory and summarized in a geotechnical report. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1271\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1271\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Why is site investigation so important for building owners? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1271\" class=\"elementor-element elementor-element-ab283c4 e-con-full e-flex e-con e-child\" data-id=\"ab283c4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b542e8 p-top elementor-widget elementor-widget-text-editor\" data-id=\"3b542e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">For building owners, site investigation forms the basis for reliable planning. Without this information, it is impossible to determine whether the subsoil is suitable for the planned structure.<\/span><br\/><br\/><span style=\"font-weight: 400;\">A lack of data significantly increases the risk associated with the building site. Typical consequences include settlement, cracks in the building, or problems caused by groundwater.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1272\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1272\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What methods are used to investigate the building site? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1272\" class=\"elementor-element elementor-element-4b717e5 e-con-full e-flex e-con e-child\" data-id=\"4b717e5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b441a9f p-top elementor-widget elementor-widget-text-editor\" data-id=\"b441a9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The choice of methods depends on the on-site conditions and the requirements of the construction project.<\/span><\/p><p><span style=\"font-weight: 400;\">Commonly used methods include:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Drilling to collect soil samples<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pressure testing to determine bearing capacity<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Laboratory tests to analyze the properties of individual layers<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">Only the combination of these methods provides a sound assessment of the subsoil.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1273\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1273\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How is a site investigation report prepared? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1273\" class=\"elementor-element elementor-element-e7f9492 e-con-full e-flex e-con e-child\" data-id=\"e7f9492\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-03ec432 p-top elementor-widget elementor-widget-text-editor\" data-id=\"03ec432\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The geotechnical report is compiled in several steps. First, boreholes are drilled and cone penetration tests are conducted on-site. The soil samples are then analyzed in the laboratory.  <\/span><\/p><p> <\/p><p><span style=\"font-weight: 400;\">Based on this data, the results are evaluated and compiled into a report. This report includes all key parameters, recommendations regarding the foundation, and information on potential risks associated with the building site. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1274\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1274\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How many surveys are required for a construction project? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1274\" class=\"elementor-element elementor-element-96f1781 e-con-full e-flex e-con e-child\" data-id=\"96f1781\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-632f07e p-top elementor-widget elementor-widget-text-editor\" data-id=\"632f07e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The number of tests depends on the size of the construction project and the nature of the building site.<\/span><\/p><p> <\/p><p><span style=\"font-weight: 400;\">On uniform soils, fewer test points are sufficient. In the case of variable soil layers or unclear conditions, additional boreholes and test pits are required to obtain a complete picture. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1275\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"6\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1275\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What risks arise without adequate site investigation? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1275\" class=\"elementor-element elementor-element-b9decd9 e-con-full e-flex e-con e-child\" data-id=\"b9decd9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-05e80ee p-top elementor-widget elementor-widget-text-editor\" data-id=\"05e80ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Without adequate investigation, the building site cannot be fully assessed.<\/span><\/p><p><span style=\"font-weight: 400;\">This often leads to:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Settlement in the Structure<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cracks in the building<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Water Damage Caused by Groundwater<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mold Damage Caused by Moisture in Cracked Walls<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">unplanned adjustments during construction<\/span><span style=\"font-weight: 400;\"><br><br><\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">These risks cause technical problems and significant additional costs.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1276\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"7\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1276\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How long does it take to conduct a site investigation? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1276\" class=\"elementor-element elementor-element-d4812ba e-con-full e-flex e-con e-child\" data-id=\"d4812ba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-809ec32 p-top elementor-widget elementor-widget-text-editor\" data-id=\"809ec32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">On-site work, such as drilling and test excavations, usually takes only a few days. The subsequent laboratory analysis and the preparation of the soil investigation report take a few more days. <\/span><\/p><p> <\/p><p><span style=\"font-weight: 400;\">Overall, depending on the project, builders should expect it to take about three to four weeks.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1277\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"8\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1277\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What role does the site plan play in geotechnical investigation? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M19.0945 8.00344L19.0945 -2.742e-06L-8.07685e-08 19.1522L0.251212 19.3858L24.7999 19.3858L24.7999 15.8719L30.6203 21L40 21L40 20.8131L20.5077 1.5052L20.5077 13.8788L12.7611 13.8788L19.0945 8.00344Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"40\" height=\"21\" viewBox=\"0 0 40 21\" fill=\"none\"><path d=\"M20.9055 12.9966L20.9055 21L40 1.84777L39.7488 1.61421L15.2001 1.61421L15.2001 5.12807L9.37967 -1.33846e-06L0 -1.74846e-06L-8.1706e-09 0.18692L19.4923 19.4948L19.4923 7.12118L27.2389 7.12118L20.9055 12.9966Z\" fill=\"#0E1D29\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1277\" class=\"elementor-element elementor-element-e4560dd e-con-full e-flex e-con e-child\" data-id=\"e4560dd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-28d74a1 p-top elementor-widget elementor-widget-text-editor\" data-id=\"28d74a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The site plan is an important basis for planning the investigations. It shows where the structure is to be located on the property and where the boreholes and test pits will be drilled. <\/span><\/p><p> <\/p><p><span style=\"font-weight: 400;\">This ensures that all relevant areas of the building site are surveyed and that the results can later be correctly applied to the construction project.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0ef092c elementor-absolute elementor-hidden-mobile elementor-hidden-tablet elementor-widget elementor-widget-image\" data-id=\"0ef092c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_position&quot;:&quot;absolute&quot;,&quot;motion_fx_motion_fx_scrolling&quot;:&quot;yes&quot;,&quot;motion_fx_translateY_effect&quot;:&quot;yes&quot;,&quot;motion_fx_translateY_speed&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:4,&quot;sizes&quot;:[]},&quot;motion_fx_translateY_affectedRange&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:{&quot;start&quot;:0,&quot;end&quot;:100}},&quot;motion_fx_devices&quot;:[&quot;widescreen&quot;,&quot;desktop&quot;,&quot;laptop&quot;,&quot;tablet_extra&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"111\" height=\"851\" src=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2024\/08\/BG-L.png\" class=\"attachment-full size-full wp-image-4545\" alt=\"\" srcset=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2024\/08\/BG-L.png 111w, https:\/\/thade-gerdes.de\/wp-content\/uploads\/2024\/08\/BG-L-39x300.png 39w\" sizes=\"(max-width: 111px) 100vw, 111px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e1948d elementor-absolute elementor-hidden-tablet elementor-hidden-mobile elementor-hidden-laptop elementor-hidden-tablet_extra elementor-widget elementor-widget-image\" data-id=\"5e1948d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_position&quot;:&quot;absolute&quot;,&quot;motion_fx_motion_fx_scrolling&quot;:&quot;yes&quot;,&quot;motion_fx_translateY_effect&quot;:&quot;yes&quot;,&quot;motion_fx_translateY_speed&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:4,&quot;sizes&quot;:[]},&quot;motion_fx_translateY_affectedRange&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:{&quot;start&quot;:0,&quot;end&quot;:100}},&quot;motion_fx_devices&quot;:[&quot;widescreen&quot;,&quot;desktop&quot;,&quot;laptop&quot;,&quot;tablet_extra&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"111\" height=\"860\" src=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2024\/08\/BG-R.png\" class=\"attachment-full size-full wp-image-4546\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Table of Contents Most errors in site investigation do not occur on the construction site. They arise during the planning phase\u2014insufficient investigation, exploration that is too shallow, or the selection of the wrong methods. This leads to incorrect assumptions about the site conditions. The consequences don&#8217;t become apparent until later. Settlement, cracks, or moisture problems [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":5537,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"class_list":["post-5535","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Planning a Site Investigation: Avoid These Mistakes<\/title>\n<meta name=\"description\" content=\"How do you properly plan a site investigation? Learn how to determine the scope, depth, and methods, and find out which mistakes can make projects costly.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Planning a Site Investigation: Avoid These Mistakes\" \/>\n<meta property=\"og:description\" content=\"How do you properly plan a site investigation? Learn how to determine the scope, depth, and methods, and find out which mistakes can make projects costly.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/\" \/>\n<meta property=\"og:site_name\" content=\"THADE GERDES\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-18T07:14:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-27T14:41:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"dev\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"dev\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/\"},\"author\":{\"name\":\"dev\",\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/#\\\/schema\\\/person\\\/e382a01ae8beb36a906ec61c77f54b6c\"},\"headline\":\"Planning Site Investigations Properly: These Mistakes Will Cost You Money During Construction\",\"datePublished\":\"2026-05-18T07:14:46+00:00\",\"dateModified\":\"2026-10-27T14:41:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/\"},\"wordCount\":2957,\"image\":{\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thade-gerdes.de\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg\",\"articleSection\":[\"Guide\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/\",\"url\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/\",\"name\":\"Planning a Site Investigation: Avoid These Mistakes\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thade-gerdes.de\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg\",\"datePublished\":\"2026-05-18T07:14:46+00:00\",\"dateModified\":\"2026-10-27T14:41:26+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/#\\\/schema\\\/person\\\/e382a01ae8beb36a906ec61c77f54b6c\"},\"description\":\"How do you properly plan a site investigation? Learn how to determine the scope, depth, and methods, and find out which mistakes can make projects costly.\",\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/guide\\\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\\\/#primaryimage\",\"url\":\"https:\\\/\\\/thade-gerdes.de\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/thade-gerdes.de\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg\",\"width\":2560,\"height\":1707,\"caption\":\"Drilling rig and emergency vehicles conducting soil investigation at a construction site\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/\",\"name\":\"THADE GERDES\",\"description\":\"Die Spezialisten f\u00fcr Baugrunderkundungen, Tiefgr\u00fcndungen und Brunnenbau\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/thade-gerdes.de\\\/en\\\/#\\\/schema\\\/person\\\/e382a01ae8beb36a906ec61c77f54b6c\",\"name\":\"dev\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Planning a Site Investigation: Avoid These Mistakes","description":"How do you properly plan a site investigation? Learn how to determine the scope, depth, and methods, and find out which mistakes can make projects costly.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/","og_locale":"en_GB","og_type":"article","og_title":"Planning a Site Investigation: Avoid These Mistakes","og_description":"How do you properly plan a site investigation? Learn how to determine the scope, depth, and methods, and find out which mistakes can make projects costly.","og_url":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/","og_site_name":"THADE GERDES","article_published_time":"2026-05-18T07:14:46+00:00","article_modified_time":"2026-10-27T14:41:26+00:00","og_image":[{"width":2560,"height":1707,"url":"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg","type":"image\/jpeg"}],"author":"dev","twitter_card":"summary_large_image","twitter_misc":{"Written by":"dev","Estimated reading time":"15 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/#article","isPartOf":{"@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/"},"author":{"name":"dev","@id":"https:\/\/thade-gerdes.de\/en\/#\/schema\/person\/e382a01ae8beb36a906ec61c77f54b6c"},"headline":"Planning Site Investigations Properly: These Mistakes Will Cost You Money During Construction","datePublished":"2026-05-18T07:14:46+00:00","dateModified":"2026-10-27T14:41:26+00:00","mainEntityOfPage":{"@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/"},"wordCount":2957,"image":{"@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/#primaryimage"},"thumbnailUrl":"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg","articleSection":["Guide"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/","url":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/","name":"Planning a Site Investigation: Avoid These Mistakes","isPartOf":{"@id":"https:\/\/thade-gerdes.de\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/#primaryimage"},"image":{"@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/#primaryimage"},"thumbnailUrl":"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg","datePublished":"2026-05-18T07:14:46+00:00","dateModified":"2026-10-27T14:41:26+00:00","author":{"@id":"https:\/\/thade-gerdes.de\/en\/#\/schema\/person\/e382a01ae8beb36a906ec61c77f54b6c"},"description":"How do you properly plan a site investigation? Learn how to determine the scope, depth, and methods, and find out which mistakes can make projects costly.","inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/thade-gerdes.de\/en\/guide\/planning-site-investigations-properly-these-mistakes-will-cost-you-money-during-construction\/#primaryimage","url":"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg","contentUrl":"https:\/\/thade-gerdes.de\/wp-content\/uploads\/2026\/04\/BG_R1_Baugrunderkundung_SuedLink-scaled.jpg","width":2560,"height":1707,"caption":"Drilling rig and emergency vehicles conducting soil investigation at a construction site"},{"@type":"WebSite","@id":"https:\/\/thade-gerdes.de\/en\/#website","url":"https:\/\/thade-gerdes.de\/en\/","name":"THADE GERDES","description":"Die Spezialisten f\u00fcr Baugrunderkundungen, Tiefgr\u00fcndungen und Brunnenbau","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/thade-gerdes.de\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/thade-gerdes.de\/en\/#\/schema\/person\/e382a01ae8beb36a906ec61c77f54b6c","name":"dev"}]}},"_links":{"self":[{"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/posts\/5535","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/comments?post=5535"}],"version-history":[{"count":1,"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/posts\/5535\/revisions"}],"predecessor-version":[{"id":5538,"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/posts\/5535\/revisions\/5538"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/media\/5537"}],"wp:attachment":[{"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/media?parent=5535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/categories?post=5535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thade-gerdes.de\/en\/wp-json\/wp\/v2\/tags?post=5535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}