Ground Investigation | Soil Quality Assessment and Optimal Foundation Design Ground Investigation for Residential Development on Embankment Land
Ground investigation
Significant reduction of excessive ground improvement costs! Proposal for optimal foundation design based on high-precision SDS testing and settlement analysis for residential buildings on embankment land.
In the areas where the construction of subdivided built houses is progressing on embankment sites, excessive reinforcement based on overly cautious safety factors is rampant due to concerns about subsurface irregularities and settlement risks after land development, leading to rising construction costs. Geotech offers ground investigation services that ensure safety while cutting unnecessary construction costs through high-precision measurements and logical analysis. This service introduces the SDS test, which automatically identifies soil types (such as sandy soil, clayey soil, and humus soil) through torque measurement, allowing for detailed numerical representation of the embankment's composition. Furthermore, it conducts settlement simulations based on an annual analysis of 100,000 data points, comprehensively evaluating stress distribution at depths of 2m and 5m below the foundation, the number of years since land development, and the deformation angles within the site. This approach eliminates uniform judgments regarding columnar improvements and pile work, presenting an "optimal foundation design" that can be addressed with direct foundations or minimal improvements. It is an ideal ground investigation solution that enhances the profitability of builders while providing a solid basis for safety to buyers of subdivided houses.
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basic information
Using the SDS test (Screw Driver Sounding) device, penetration load, torque values, and rotation speed are automatically recorded digitally at intervals of 25 cm. The obtained rotation torque (maximum and minimum) and penetration resistance are used to automatically classify the soil type. An analysis program calculates the long-term allowable stress and predicted settlement amount at depths of 2 m and 5 m below the foundation, and evaluates the deformation angle (tilt of the building) between measurement points on the site. The number of years since the embankment was constructed and the history of past land use are also taken into account, and judgments are made by cross-referencing with a database of 100,000 cases annually.
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It is ideal for evaluating the foundation ground of newly built, subdivided houses and general single-family homes in large-scale development areas and tiered subdivided lots. We accurately respond to the needs of builders and construction companies who want to significantly reduce construction costs by avoiding excessive ground improvement work in sites with subsiding layers or uneven fill. Additionally, the objective settlement simulation results and analysis data based on soil classification can be widely used as submission materials for ground guarantees and insurance reviews, or as highly reliable technical evidence to prove safety to home buyers.
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