Site Investigation | Optimizing Pile Layout for New Construction on Weak Soil Using DB Composite Ground Bearing Capacity Survey
Clarifying the unevenness of the supporting layer for new buildings on soft ground through the comparison of wide-area ground databases and multi-point measurements! Preventing excessive pile design and achieving optimization of pile placement.
This solution is a ground consulting service that highly integrates and correlates extensive ground database and multi-point field sounding measurements for building new construction plans on soft ground. In sites where uneven soft soil layers and complex undulations of bearing layers are hidden, relying solely on single-point investigations can lead to evaluation errors of the supporting ground, directly resulting in excessive designs such as unnecessary extensions of pile lengths and increases in the number of piles. Geotech immediately cross-references accumulated surrounding boring data (GEODAS) with continuous Nd values and torque data obtained on-site. This allows for the precise identification of the three-dimensional transition of ground bearing capacity and local soft spots. By directly linking the visualized ground bearing capacity values with structural calculation models, we determine the minimal pile layout and optimized pile lengths in millimeter increments according to stress concentration under columns. This prevents rework of pile head drilling and chipping at the construction site, significantly optimizing construction budgets and timelines.
basic information
This survey service will be conducted by combining the analysis of neighboring boring column data accumulated in the internal database GEODAS with fully automated continuous sounding tests conducted on-site (maximum exploration depth of 30m). The penetration amount is recorded in increments of 200mm, and the number of blows and rotational torque are electronically acquired. The data is then automatically converted to measured strength (Nd value) equivalent to the standard N value through rod surface friction correction. By cross-referencing prior information with on-site measured values from multiple angles, we will output the allowable vertical bearing capacity and differential settlement simulation results with high precision.
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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 planned in soft ground areas, coastal zones, and alluvial regions. It is ideal for projects where one wants to understand the depth and inclination trends of the supporting layer during the preliminary planning stage to prevent rework, or to enhance the objectivity of judgment data by cross-referencing on-site measurement values with broad area data from multiple perspectives. It is widely adopted as robust technical evidence supporting the smooth progression of submission materials to designated confirmation inspection agencies and structural conformity assessments.
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