破除车站换乘节点预留墙体结构的变形及内力分析

随着轨道交通的发展，线网密度将会越来越大，导致换乘车站越来越多。新建换乘车站与既有车站衔接成为一个重要的设计内容，施工破除既有运营车站墙体成为一个重要关键的技术，一方面要保证既有线路运营安全，另一方面要保证既有地铁结构的受力在正常范围之内。以新建某地换乘车站为例，运用ANSYS有限元分析软件模拟凿除换乘节点侧墙的施工，求得既有结构的变形和内力变化，从设计和施工方面提出相应的技术措施。

Analysis on Deformation and Internal Force of Reserved Wall Structure for Removing Station Transfer Nodes

With the development of rail transit, the density of the line network will increase, which will lead to an increasing number of transfer stations. The connection between the newly built transfer station and the existing station has become an important design content, and the construction of abolishing the walls of the existing operating station has become an important key technology. On the one hand, it is necessary to ensure the safety of the existing line operation, and on the other hand, it is necessary to ensure that the stress of the existing subway structure is within the normal range. Taking a newly built transfer station as an example, ANSYS finite element analysis software is used to simulate the construction of chiseling out the side walls of transfer nodes in order to acquire the deformation and internal force changes of the existing structures. The corresponding technical measures are proposed from the design and construction aspects.