深圳市某地铁车站深基坑底部涌水治理技术探析  

Analysis on the water inrush treatment technology at the bottom of deep foundation pit of a subway station in Shenzhen

作　　者：朱兰萍 Zhu Lanping(China Railway Huaying(Shaanxi)Engineering Consulting Co.,Ltd.,Xi’an Shaanxi 710054,China)

机构地区：[1]中铁华营(陕西)工程咨询有限公司,陕西西安710054

出　　处：《山西建筑》2024年第10期94-96,168,共4页Shanxi Architecture

摘　　要：在灰岩富水岩溶区、褶皱破碎断裂带进行地铁车站深基坑施工,要面临许多施工不确定,尤其是深大基坑开挖至邻近垫层标高坑底涌水是工程施工中的重大事故隐患,迅速、精准查找出涌水通道和涌水原因是处置解决问题的首要任务。以深圳某地铁车站深基坑开挖过程中涌水为背景,全面、系统分析了形成涌水的原因,针对深基坑底部水力劈裂型涌水具体工况,采取了行之有效的应对措施,使得涌水得以治理,保证了基坑后续施工正常进行。In the limestone rich water karst area,the construction of deep foundation pits for subway stations in folded and fractured fault zones faces many construction uncertainties,especially the water inrush from the excavation of deep and large foundation pits to the elevation of adjacent cushion layers is the significant accident hazard in engineering construction,quickly and accurately identifying the water inrush channels and causes is the primary task to deal with and solve the problem.Based on the background of water inrush during the excavation of a deep foundation pit at a subway station in Shenzhen,a comprehensive and systematic analysis was conducted on the reasons for the formation conditions of water inrush,effective measures were taken to address the specific working conditions of hydraulic splitting water inrush at the bottom of deep foundation pit,which enabled the water inrush to be controlled and ensured the normal progress of subsequent foundation pit construction.

关 键 词：围护结构 基坑突水 溶洞裂隙 渗水通道 水力劈裂型 高压旋喷桩 

分 类 号：TU463[建筑科学—结构工程]