Discussion on Determination of Foundation Bearing Capacity by Load Test and Case Study

Qiwen Zheng, Shang Gao
2019 IOP Conference Series: Earth and Environment  
Based on the basic principle of soil mechanics, this paper gives some suggestions on the naming rules of foundation bearing capacity. In addition, the test principle and specific application of determining foundation bearing capacity by load test are analyzed and discussed in combination with relevant cases. It is suggested that the naming of foundation bearing capacity should include the name of in-situ test, test depth and subject. To determine the characteristic value of building foundation
more » ... uilding foundation bearing capacity by load test, two influencing factors should be considered: i) the size difference between the bearing plate and the foundation, and ii) the lateral stress difference of the soil layer within the depth of influence of stress under the bearing plate and the foundation. For homogeneous soil layer, the characteristic value of foundation bearing capacity determined by shallow plate load test is a constant in theory, the characteristic value of foundation bearing capacity determined by deep plate load test is a function of test depth, and the gradient of foundation bearing capacity determined by deep plate load test of homogeneous soil layer is ηdγm along depth in theory.
doi:10.1088/1755-1315/376/1/012030 fatcat:xqkm2laobfbjpozvnsxy7uwqve