零距离平行换乘车站基坑开挖影响性分析  

INFLUENCE ANALYSIS OF FOUNDATION PIT EXCAVATION OF ZERO DISTANCE PARALLEL TRANSFER STATION

作　　者：杨才 YANG Cai(Guangzhou Metro Design and Research institute Co.,Ltd.,510010,Guangzhou,China)

机构地区：[1]广州地铁设计研究院股份有限公司,广州510010

出　　处：《建筑技术》2023年第23期2831-2834,共4页Architecture Technology

摘　　要：以某零距离平行换乘车站为研究对象,通过三维有限元分析,对比不同工况下整坑开挖和分坑开挖方案对既有车站变形的影响规律。结果表明,分坑开挖方式可以有效减小既有车站结构的竖向位移和水平位移,对于保护要求等级高的建筑物和构筑物,邻近基坑可采用分坑开挖方式,为类似工程提供参考。Taking a zero distance parallel transfer station as the research object,through three-dimensional finite element analysis,the influence laws of whole pit excavation and sub pit excavation schemes on the deformation of the existing station under different working conditions were compared.The results show that the pit excavation method can effectively reduce the vertical and horizontal displacement of the existing station structure.For buildings and structures with high protection requirements,the pit excavation method can be adopted,which can provide reference for similar projects.

关 键 词：零距离平行换乘 分坑开挖 有限元 变形控制 

分 类 号：TV641.1[水利工程—水利水电工程]