H型双排桩支护结构三维数值模拟分析与工程应用

Three-dimensional Numerical Simulation Analysis and Application for Support Structure of H-double Piles

应用岩土工程有限元软件MIDAS/GTS,采用Hardening-soil土体本构关系模型结合长沙中青广场深基坑工程实例,模拟H型双排桩基坑支护全过程,分析了水平位移的变化特征和剪力弯矩的受力特点,并针对单排桩支护设计进行了方案比选,证明了在控制水平位移和变形方面H型双排桩相比于单排桩锚支护结构优势明显。

This paper simulated the whole support process of H-double piles composite anchor for foundation excavation in Changsha Zhongxing Square by applying MIDAS / GTS software and analyzing the characteristics of displacement and shear bending. A design comparison for single piles supporting was conducted to prove that there are evident advantages of H-double piles in the aspect of horizontal displacement and deformation control compared with single piles.