路堤墙对山区高速公路路基沉降变形影响模拟分析

Simulation Analysis of the Influence of Embankment Wall on the Settlement and Deformation of Expressway Subgrade in Mountainous Area

随着我国西部经济的快速发展,高速公路建设向山岭纵丘方向不断深入,引起越来越多的公路稳定问题,为设计、施工和管理带来新的挑战。以贵州德江(合兴)至余庆高速公路路基工程为研究对象,应用大型有限元软件COMSOL建立路基沉降计算模型,分析了设置路堤墙对山区多雨地区填方路基的沉降变形影响,可为山区高速公路的路基沉降控制提供一些参考。

With the rapid development of economy in the western part of China, the construction of expressways has been deepening in the direction of mountains and hills, which causes more and more problems of highway stability, and brings new challenges to the design, construction and management of highways. A highway subgrade project in Guizhou Province is taken as the research object, and the settlement calculation model of subgrade is established by using large-scale finite element software COMSOL. The influence of setting embankment wall on settlement and deformation of filling subgrade is analyzed, which can provide some reference for subgrade settlement control of mountainous expressway.