城市富水区域狭长基坑不降水明挖支护研究  

Research on Retaining and Protection for Narrow Excavations with Openexcavation Method in Water-rich Area of Cities

作　　者：田莉梅[1] 张景华[2] 刘岗卫 崔炜[2] 柴茜 Tian Limei;Zhang Jinghua;Liu Gangwei;Cui Wei;Chai Xi(Langfang Normal University,Langfang 065000,China;China Petroleum Pipeline Engineering Corporation,Langfang 065000,China)

机构地区：[1]廊坊师范学院建筑工程学院,河北廊坊065000 [2]中国石油天然气管道工程有限公司,河北廊坊065000

出　　处：《廊坊师范学院学报（自然科学版）》2022年第3期86-91,共6页Journal of Langfang Normal University(Natural Science Edition)

基　　金：教育部高等教育司产学研合作协同育人项目(202102113029);河北省高等教育教学改革研究与实践项目(2021GJJG364);廊坊师范学院博士科研启动费项目(XBQ202113);廊坊师范学院校级重点课题(K2018-03);河北省教育厅青年基金项目(QN2018202)。

摘　　要：城市地下空间极其复杂,一些地区河湖水系发达地下水位埋深较浅,为了避免基坑开挖降水导致地面沉降,城市地下空间建设过程中,对基坑的开挖支护及地下水控制是研究的重点。通过工程实例,对不采用大面积井点降水的狭长深基坑支护方案进行研究,对比排桩和地下连续墙两种开挖支护方式,提出更加安全、环保、技术先进、经济合理的开挖方案,为工程实际应用提供参考依据。Urban underground space is extremely complicated, in areas where there are many lakes and rivers, underground water table is very shallow. Research on the retaining and protection for excavations and groundwater control is the key to avoid excessive ground settlement caused by dewatering in the process of construction in underground space. This paper tries to research into the retaining and protection structure for narrow and deep excavations where light well point precipitation in large area is not applicable. Meanwhile, this paper compares the advantages and disadvantages of two different support systems: soldier pile wall and diaphragm wall. Through the analysis, the paper puts forward more advanced, economic,safe and environmental-friendly excavation method to provide references for engineer practice.

关 键 词：富水 狭长基坑 不排水 支护优化 

分 类 号：TU47[建筑科学—结构工程]