Taking a rental housing project in Fuzhou as an example,this article deeply discusses the influence of the silty soil layer on the pile foundation during the foundation pit excavation process.Through field tests and finite element analysis,it is studied that the key factor causing pile foundation defects is the surcharge load at the edge of the foundation pit.This article proposes to optimize the earthwork excava-tion technology and soft foundation solidification treatment methods to effectively deal with pile foundation defects.By implementing these improvement measures and carrying out targeted treatment on defective piles,the test results show that the quality of the pile foundation meets the design and specification requirements,verifying the effectiveness of the proposed methods.
关键词
淤泥质土/基坑开挖/桩基缺陷/有限元分析/缺陷处理
Key words
Silty soil/Foundation pit excavation/Pile foundation defects/Finite element analysis/Defect treatment