摘要
本文结合某工程实例,简述富水砂土地层中基坑由于围护结构缺陷在开挖过程中出现涌水、涌砂导致坑外局部塌陷的情况,分析险情发生的原因及对周边环境危害,总结基坑发生涌水、涌砂现象应采取的抢险措施,以及为避免基坑出现类似险情,提出合理化建议和措施,以期达到降低和控制类似工程风险的作用。
Combined with a project example,this paper briefly describes the local collapse outside the foundation pit due to water and sand gushing in the process of excavation due to the defects of the retaining structure in the watered sandy stratum.This paper analyzes the reason of dangers and their harm to surrounding environment,summarizes the emergency measures that should be taken when gushing water and sand occur at the foundation pit,and puts forward reasonable suggestions and measures to avoid similar dangers.In order to reduce the risk of similar projects,this paper provides a useful reference for the prevention of leakage damage risk and emergency rescue preparation of foundation pit engineering under the same geological conditions.
作者
李忠诚
王烨晟
韩少泽
LI Zhong-cheng;WANG Ye-sheng;HAN Shao-ze(Zhejiang Huadong Mapping and Engineering Safety Technology Co.,Ltd.;Powerchina Huadong Engineering Co.,Ltd.;Zhejiang Smart Rail Transit Engineering Technology Research Center)
出处
《中国标准化》
2021年第22期149-154,共6页
China Standardization
基金
浙江省建设科研项目(项目编号:2018K140)
浙江省科技厅重点研发项目“轨道交通专用装备与关键器件研发及产业化——地铁隧道保护监控系统及病害防治关键技术研发与应用”(项目编号:2020C01102—)资助。
关键词
富水砂层
基坑
漏水漏砂
预防
watered sandy stratum
foundation pit
water and sand leakage
prevention
