邻近基坑开挖对既有国铁站房及铁路营业线影响分析

Analysis of the Impact of Adjacent Foundation Pit Excavation on Existing National Railway Stations and Railway Business Lines

以某临近绍兴火车站超大基坑为例,通过PLAXIS软件模拟临近国铁站房及营业线的基坑分坑开挖的过程,分析了基坑开挖对站房及铁路路基影响。结果表明,基于HSS本构模型模拟临近站房开挖,对既有基坑及铁路路基的影响均小于控制值,现有施工方案已能满足工程安全性。

Taking a super-large foundation pit near Shaoxing Railway Station as an example,the PLAXIS software was used to simulate the process of excavation of foundation pits adjacent to national railway stations and business lines,and the impact of foundation pit excavation on the station and railway subgrade was analyzed.The results show that by simulating the excavation of adjacent station buildings based on the HSS constitutive model,the impact on the existing foundation pit and railway subgrade is less than the control value,and the existing construction plan can meet the safety requirements of the project.