浅析“倒挂井”施工办法【摘要】随着都市建设的发展,市政工程地下管线越来越多,在顶管施工时有工作井、接受井及检查井,这些井有的位于商铺门前,有的位于交叉路口,有的位于街巷民房旁边,并且井的上方和周边经常有某些电力电缆、电信光缆、军用光缆、燃气管道以及给水管道等地下管线
由于采用正常的大开挖或沉井施工非常困难,同时对周边环境影响较大且存在安全隐患,因此多采用倒挂井施工办法
【核心词】倒挂井; 工艺原理; 施工特点;[Abstract]with the development of city construction,municipal engineeringmore and moreunderground pipelines,in thepipe jacking constructionworkwell,receiving wellandinspection wells,these wellslocated infront ofshops,some inthe intersection,some on thestreethousesnearby,butwellabove andis always aroundunderground pipelinesomepower cable,telecommunicationsfiber optic cable,optical cable,militaryandwater supply pipeline,gas pipeline
Due to thenormalexcavationoropen caisson constructionis very difficult,buta greater impact on the surrounding environmentandhidden safety problems,thereforeth