复合地基列车荷载作用下的沉降特性分析

Settling characteristic of composite foundation strengthened subgrade under train load

采用分离式和复合模量两种方法对某高速铁路客运专线段复合地基加固路基在列车荷载作用下的沉降特性进行了有限元分析,计算结果验证了黄土复合地基刚度加固设计的可靠性,可为高速铁路路基加固的计算及设计提供参考。

In this paper, for the settling characteristics of composite foundation strengthened subgrade under trainload in a high speed railway line for passenger traffic, the finite element analysis was given by respectively using separate type method and compound modulus method. The analysis results showed the reliability of reinforcement design of loess composite foundation. The procedure can provide the references for the calculation and design of subgrade strengthening in high speed railway.