Ground Investigation | Smart Explanation Techniques for Evidence-Based Foundation Specifications to Prevent Settlement in Embankment Areas
Ground investigation
Stop excessive reinforcement by precisely analyzing the cut and fill boundaries and settlement layers of the fill soil! Present evidence with a color-illustrated report to gain the trust of the client and secure contracts.
In residential planning for sites with varying elevations, such as embankment construction areas or terraced subdivisions, addressing differential settlement caused by variations in ground strength (cut-and-fill transitions) and the presence of subsiding layers near the surface is the most critical issue. However, excessively imposing costly ground reinforcement work due to fear of risk can unjustly inflate construction costs and become a major factor leading to dissatisfaction and distrust from clients. This document explains the "smart explanation technique" to prevent excessive reinforcement in uneven embankment sites and to select and explain foundation specifications based on evidence. Geo-tech's ground surveys combine penetration data from multiple points with elevation measurements to three-dimensionally clarify the position of cut-and-fill boundaries and the thickness of subsiding layers. With a unique "three-item, eight-factor" evaluation criterion and an annual analysis record of 100,000 cases, we accurately determine the safe range for direct foundations such as slab foundations. By utilizing a visually represented evaluation report, we can clearly explain the validity of the construction to clients, achieving high trust and smooth contract agreements.
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basic information
The specifications and specs described in this document are based on a ground evaluation system that integrates continuous penetration data from SWS tests, SDS tests, and site elevation survey data. It covers the calculation of the boundary between cut and fill, thickness evaluation by depth for settlement layers (load settlement and rotational settlement), stress diffusion analysis at depths of 2m and 5m below the foundation, and the calculation specifications for settlement amounts and deformation angles according to building eccentric loads. It clearly outlines the process for issuing color 3D and 2D estimated cross-sectional diagrams of stratigraphic composition, bearing capacity calculation reports by soil classification, and ground judgment reports.
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Applications/Examples of results
This can be used for the assessment of foundation specifications for wooden single-family homes and subdivided houses on filled land, cut-and-fill sites, and residential lots with elevation differences, as well as for presentations to clients. It is ideal for eliminating unnecessary ground improvement work, obtaining technical backing for the selection of slab foundations and underground beams, and presenting the validity of estimated costs. It can serve as a practical tool for sales representatives and designers from residential builders and construction companies to clearly explain the risks of the land and the legitimacy of the foundation specifications to clients, alleviating concerns and facilitating smooth contracts and construction starts.
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