上软下硬地层基坑开挖对下部双线隧道的影响研究  

Study on influence of excavation of pit on deformation of underlying tunnel in upper soft and lower hard stratum

作　　者：李毅[1] 

机构地区：[1]四川大学规划建设处,四川成都610000

出　　处：《山西建筑》2017年第12期178-180,共3页Shanxi Architecture

摘　　要：以青岛某建筑工程深基坑下部存在既有地铁双线隧道工程为例,采用有限差分法计算软件,分析了基坑支护形式及开挖方案对隧道的影响规律,并探讨了支护结构的变形特征,得出的结论为工程的顺利施工提供了依据。Taking the double-line subway tunnel of existing subway under the deep foundation pit of some building in Qingdao as the example, the paper adopts the finite difference method, analyzes the influence law of the support form and excavation scheme on the tunnel, explores the de-formation features of the support structure, and achieves some conclusions, so as to provide some reference for the construction of the tunnel.

关 键 词：深基坑 支护形式 既有隧道 注浆加固 

分 类 号：U231.3[交通运输工程—道路与铁道工程]