Site Investigation | Visualization Survey of Bearing Capacity to Optimize Pile Layout for New Building Construction on Soft Ground
Ground investigation
Visualizing horizontal load capacity in new building construction on weak ground! By analyzing ground reaction forces, we prevent excessive pile diameter and reinforcement, achieving optimal pile placement.
This solution is a ground consulting service that accurately visualizes the horizontal bearing capacity and lateral ground reaction coefficient during earthquakes in building construction plans on soft ground, optimizing pile layout and foundation structure. In sites where thick soft layers are distributed, there has been a challenge of selecting excessively thick pile diameters and excessive pile driving to suppress the bending moment at the pile head and horizontal displacement during earthquakes. GeoTech conducts penetration measurements at multiple points and integrated analysis of ground deformation characteristics, accurately depicting the lateral ground reaction coefficient (Kh) and allowable vertical bearing capacity as numerical data for each depth. By linking the obtained ground bearing capacity parameters to the structural calculation model, we derive the minimum number of piles and optimal pile diameter and pile head reinforcement specifications according to the axial and horizontal forces under each column. This eliminates excessive design and significantly reduces construction labor and material costs while maintaining structural safety. A report with clear calculation basis also facilitates smooth structural compatibility assessment.
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basic information
This survey service combines standard penetration tests with boring surveys, in-situ horizontal loading tests, and multi-point automatic continuous penetration tests to obtain detailed ground characteristics up to a maximum exploration depth of 30 meters. By correcting the side friction using impact resistance and torque data at 200mm depth intervals, continuous N-values and lateral ground reaction coefficients (Kh) are calculated. Furthermore, by integrating indoor mechanical test data, it outputs high-precision numerical analyses of deformation coefficients, allowable vertical bearing capacities, and horizontal resistance values based on the guidelines of the Architectural Institute of Japan.
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Applications/Examples of results
It is primarily used for the design of pile foundations and optimization of pile layouts for mid-rise and high-rise buildings, office buildings, reinforced concrete condominiums, and mixed-use commercial facilities constructed on soft ground. It is ideal for projects that want to avoid excessive design for lateral forces and pile head bending moments during earthquakes, or that aim to accurately calculate lateral ground reaction coefficients to enhance the precision of structural calculations. Additionally, it is widely adopted as robust technical evidence to smoothly pass structural conformity assessments and building permit reviews by designated inspection agencies.
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