单桩与群桩加固软土地基的有限元分析

摘要

利用大型有限元分析软件，对竖向荷载作用下单桩和群桩性状进行数值分析，给出了有限元计算中土体和桩体本构关系模型，分析桩长、桩身直径对单桩基础和群桩基础的荷载—位移曲线的影响规律，为软土地基的设计提供参考依据。%Using the large-scale finite element analysis software,this paper made numerical analysis on the single pile and group pile behavior un-der vertical load,gave the soil body and pile body constitutive relation model in finite element calculation,analyzed the influence law of load-dis-placement curve of pile length,pile diameter to single pile foundation and group piles technology,provided reference for the design of soft soil foundation.