摘要
武汉某泵站工程邻近盾构隧道,为了准确分析泵站基坑开挖对盾构隧道结构的影响,采用Midas GTS有限元数值模拟软件对泵站基坑开挖过程进行三维数值模拟分析。根据模型计算结果可知,基坑开挖对隧道的影响在允许值范围内,并且采用坑底加固措施后,能有效减小基坑开挖对既有隧道的影响,可为相关工程提供参考。
In order to accurately analyze the influence of foundation pit excavation on shield tunnel structure in Wuhan,Midas GTS finite element numerical simulation software was used to simulate the excavation process of foundation pit of a pump station.According to the calculation results of the model,it can be seen that the influence of foundation pit excavation on the tunnel is in the allowed range,and the effect of foundation pit excavation on existing tunnels can be effectively reduced by adopting basal treatment,which can provide reference for related projects.
作者
谭子安
TAN Zian(China Railway SIYUAN Survey and Design Group Co.,Ltd,Wuhan 430063)
出处
《铁道勘测与设计》
2024年第4期42-46,共5页
Railway Survey and Design
关键词
泵站
基坑
数值模拟
位移
Pump Station
Foundation pit
Numerical simulation
Displacement
