某翻建工程对邻近地铁安全的影响分析研究

The Research on Effect of a Rebuilding Project on Safety of Adjacent Subway

随着城市轨道交通的快速发展,越来越多的地铁线路贯穿于城市中心区,地铁隧道在使用阶段与城市其他建筑物之间相互影响也越来越多。利用ANSYS数值分析软件,在2种工况下,分别分析了地铁4号线区间隧道及联络通道变形与应力变化,得出在整个翻建工程施工过程中,地铁结构最大竖向变形为1.16mm,最大应力为0.81MPa,对地铁4号线的结构安全和正常运营不会造成危害性影响。

With the rapid development of urban rail transit,more and more metro lines throughout the city. Subway tunnel in use phase and mutual influence between city other buildings are more and more. In this paper,by using ANSYS numerical analysis software,under two conditions,respectively analyzes the subway line 4 tunnel deformation and stress changes and contact channel. It is concluded that in the whole expansion project construction process,the subway structure maximum vertical deformation is 1. 16 mm,maximum stress is 0. 81 MPa. The project does not cause harmful effects on subway line 4 structure safety and normal operation.