摘要
以宁波市某新建通道上跨既有地铁1号线的基坑开挖工程为背景,建立了Midas/GTS NX三维模型,考虑土体、围护结构和既有隧道的相互作用,分析了地基加固、设置抗浮桩以及开挖顺序引起的时空效应对既有隧道变形的影响,得出了一些有意义的结论。
Taking the foundation pit excavation engineering of a new cross overpass existing tunnel line 1 in Ningbo as the engineering back-ground ,this paper established the Midas/GTS NX three-dimensional model, considering the interaction of soil, retaining structure and existing tunnel, analyzed the influence of time-space effect caused by foundation reinforcement, anti floating piles setting and excavation sequence to ex-isting tunnel deformation, drew some meaningful conclusions.
出处
《山西建筑》
2017年第14期190-192,共3页
Shanxi Architecture
关键词
基坑工程
既有隧道
地基加固
抗浮桩
时空效应
foundation pit engineering, existing tunnel, foundation reinforcement, anti floating pile, time-space effect
