地铁深基坑开挖与支承轴力、围护结构变形监测分析

The Monitoring and Analysis of the Subway Deep Excavation,the Bearing Axial Forces and Retaining Structure Deformation

就北京地铁八号线二期回龙观东大街站明挖基坑、明挖区间施工,对开挖过程中基坑围护结构变形、支承轴力、地表管线沉降数据进行监测分析,得出围护桩体位移、支承轴力随开挖时间及开挖过程的变化关系,可为同类工程施工提供参考。

In the open excavation of foundation pits and intervals of Huilongguan East Street Station in Beijing Metro Line 8 Second Period,monitoring and analysis are made on the foundation pits＇ retaining structure deformation,bearing axial forces,and surface pipe lines settlement data.Then the changes of the retaining pile displacement and bearing axial forces with the excavation time and process are got,which can be reference to similar engineering.