With the development of urban underground commercial space,there are often spatial conflicts between proposed underground structures and existing municipal facilities.How to properly handle such municipal facilities,such as water supply pipes,sewage main pipes,cables,etc.,while ensuring the safe and smooth progress of the project,has become an inevitable problem in deep foundation pit construction.Based on the development and construction of underground space in Fuzhou South Street,this paper summarizes and discus-ses the construction difficulties,design and key technical measures,and construction process of deep foundation pits that encounter large-diameter in-situ protection sewage pipes,which can provide reference for similar engineering cases.
关键词
地下商业空间/污水干管/土体加固/原位保护/地连墙逆作法
Key words
Underground commercial space/sewage pipe/soil reinforcement/in-situ protection/reverse construction method for under-ground continuous walls