上部桥梁施工对地铁隧道结构变形影响分析

Analysis of the Influence of Upper Bridge Construction on the Deformation of Subway Tunnel Structure

为研究上部桥梁施工对地铁隧道的影响,本文依托常州新桥中桥桥梁上跨地铁1号线隧道工程实例,采用有限元软件Abaqus进行三维建模分析,根据模拟计算的结果对上部桥梁施工过程中地铁隧道的安全进行了评估,结合现场施工监测分析了上部桥梁施工对下部地铁隧道的影响,可供类似工程借鉴。

In order to study the impact of the construction of the upper bridge on the subway tunnel,the engineering background of this paper is an example of the tunnel project of Changzhou Xinqiao Zhongqiao Bridge spanning Metro Line 1.The large-scale finite element software Abaqus is used for 3D modeling.The safety of the subway tunnel during the construction of the upper bridge was evaluated,and the impact of the construction of the upper bridge on the lower subway tunnel was analyzed.It can be used as reference for similar projects in the future.