Research on the Method of Rod Length Correction for Standard Penetration Test in Deep Soft Soil Layers
In order to study the rod length correction method of standard penetration test in deep buried soft soil layers,this paper takes the representative soil layer in a test site in Kunming as the research object.It constructed a three-dimensional solid model based on the Mohr Coulomb constitutive relationship using ABAQUS finite element software.This article analyzes the stress and deformation distribution of soil layers and penetrators during the standard penetration process in deep soft soil layers,and proposes a calculation formula for the pole length correction coefficient.The difference between the calculation formula within a 75m pole length range and existing national and local regulations is compared to verify the accuracy of the pole length correction coefficient calculation results.
deep soft soil layerstandard penetration testpole length correctionnumerical simulation
国家科技期刊平台
NSTL
万方数据
维普
