期刊论文

中文

湖南城市学院学报(自然科学版)

1672-7304

2022

31

5

7-12

10.3969/j.issn.1672-7304.2022.05.0002

湖南省自然科学基金项目（2021JJ50142）；

本校为第一机构

结合Biot三维固结理论和某快速轨道交通线的软基处理工程实例,利用Abaqus非线性有限元分析软件,建立塑料排水板和袋装砂井联合超载预压软基的三维有限元模型,研究了加固软基在堆载作用下的有效应力分布、土体地表沉降以及孔隙水压力消散规律.结果表明:排水板与袋装砂井联合加固复杂深厚软土场地,具有较好的适用性,且可减少堆载预压对加固软基外部土体的影响.

Combined with Biot's three-dimensional consolidation theory and an engineering example of soft foundation treatment of a fast rail transit line,a 3D finite element model of plastic drainage board and bagged sand well combined with overloaded preloaded soft foundation was established by using Abaqus nonlinear finite element analysis software.Effective stress distribution,soil surface settlement and pore water pressure dissipation law of reinforced soft foundation under heap load were studied.The results show that the combination of drainage board and bagged sand well to strengthen the complex a...