CFG桩复合地基静载试验与数值模拟对比分析

Comparison and Analysis of Static Load Test to Digital Simulation for CFG Pile Composite Ground

利用FLAC3D对CFG桩单桩复合和四桩复合地基静载试验进行了数值模拟,并与某工程现场实测结果进行对比分析,两者基本一致,同时分析对比了单桩复合和多桩复合下的地基承载力的不同。在此基础上,以四桩复合地基静载试验为例,分析了CFG桩复合地基应力场和位移场特性。模拟分析可以为工程中复合地基静载试验的结果评价确定提供有益的参考。

CFG single pile/multi-piles composite ground static load test are simulated by FLAC3D,and simulated results was compared and analyzed with in-situ test results in some engineering.The both results are fundamentally consistence.Meanwhile analysis and comparison of bearing capacity have been done for single pile and multi-piles composite ground.Based on this,taking four piles composite ground as example,the stress field and displacement field characteristics of CFG pile composite ground are analyzed.The simulation analysis could be used to effectively referenced during evaluation and determination of bearing capacity of composite ground in practical engineering.