摘要
以成都轨道交通倪家桥站扩能改造工程为背景,介绍了侧墙改造开洞的详细工序以及相关保护措施,并采用数值模拟方法,定量分析了各破除步序下既有车站结构变形和内部应力变化情况。通过对全施工过程的模拟,揭示了侧墙破除过程中既有结构内力及沉降变化最敏感的阶段。
Taking the capacity expansion and reconstruction project of Nijiaqiao Station of Chengdu rail transit as the background,this paper introduces the detailed process and relevant protection measures of side wall reconstruction and opening,and uses the numerical simulation method to quantitatively analyze the structural deformation and internal stress change of existing station under each step of breaking.Through the simulation of the whole construction process,the most sensitive stage of the internal force and settlement of the existing structure in the process of side wall breaking are revealed.
作者
杜志涛
郭宏博
DU Zhitao;GUO Hongbo(Guangzhou Metro Design and Research Institute Co.,Ltd.,Guangzhou,Guangdong 510010,China)
出处
《施工技术》
CAS
2020年第13期109-113,共5页
Construction Technology
关键词
既有地铁车站
侧墙
改造
小导洞
变形
数值模拟
existing subway station
side wall
reconstruction
small guide holes
deformation
numerical simulation
