南京德基广场井点动态降水施工技术  

Construction Technology of Well-points Dynamic Dewatering in Nanjing Deji Plaza

作　　者：廖秋林[1] 刘春安[1] 曾志献 曾广桃 

机构地区：[1]北京城建集团建筑工程总承包部,北京100088

出　　处：《施工技术（下半月）》2011年第1期9-12,共4页Construction Technology

基　　金：国家科技支撑计划子课题(2008BAJ06B02-2);国家自然科学基金资助项目(40702052)

摘　　要：根据南京德基广场二期工程超深逆作法基坑降水的施工实践,结合地下结构逆作法施工部署,围绕逆作法深基坑降水的降水设计和施工运行等关键问题进行重点分析与阐述。该工程降水施工与运行历经2年多,直至工程地下逆作法施工结束,期间基坑外围环境各项变形监测数据稳定,土方和结构施工进展顺利,表明超深逆作法基坑分层按需式井点动态降水科学、有效。Based on dewatering of the super-deep foundation excavation in Nanjing Deji Plaza with reverse construction method,the design,construction and operating of dewatering are introduced and analyzed combined with the reverse constructing of underground structures.The dewatering of the reverse foundation excavation in Nanjing Deji Plaza has been completed for 2 years.During this period,the earthwork and reverse construction of underground structures run smooth,and data deformation monitoring were not out of range.It shows that the excavation well-points dynamic dewatering of layered on-demand for the reverse foundation excavation in Nanjing Deji Plaza is successful.

关 键 词：逆作法 基坑降水 井点降水 

分 类 号：TU463[建筑科学—结构工程]