寒区路桥过渡段在地下水作用下的沉降分析

Settlement analysis of transition section of road and bridge in cold area under action of groundwater

多年冻土地区的路桥过渡段,除了存在纵向差异沉降,还有与下伏冻土有关的特有工程问题。本文基于室内模型试验,研究地下水对路桥过渡段差异沉降的影响。通过设置热源模拟地下水效应,得出如下结论:在地下水作用下,桥台和路基的沉降量明显增大,且桥台的沉降量比路基明显偏大。

In embankment-bridge transition section of permafrost regions, the roadbed could settle differentially. In addition, there are special engineering problems because of the underlying permafrost. This paper studies the effect of differential settlement in embankment-bridge transition section under the groundwater by experiment. Setting the heat under the pile to simulate groundwater, the results show that under this condition, the settlement of abutment and roadbed increased obviously, and the settlement of abutment is more serious.