At present,retaining pile,soil nailing wall,drilling and excavation methods are used in most dewatering projects of foundation pit.These conventional methods have long construction period,poor economy and difficult quality assurance.Through taking an industrial park project as an example,the study analyzes the engineering geological conditions and target requirements,and conducts the new water intercepting technology of local drilling in pit,pressure relief and steel box with bottom and concrete caisson.This technology can reasonably solve the problem that the water level of the project is not deep enough.There is the problem of sand swell.This can provide reference for similar projects.
关键词
坑中坑降水技术/底钢箱+混凝土壁沉箱/钻井降水
Key words
Pit in pit dewatering technology/Steel bottom box+concrete wall caisson/Drilling precipitation