2013年8月下 施工技术 第42卷第16期 CONSTRUCTION TECHNOLOGY 105 D0I:10.7672/sgs2013160105 某深基坑止水帷幕失效后的渗漏治理 任斌向1,郭卫萍2 (1.龙元建设集团股份有限公司,上海200434;2.吴基工程建设(苏州)有限公司,江苏苏州215000) [摘要]深基坑止水帷幕是控制地下水涌人的重要措施之一,止水帷幕是否有效,直接关系到整个基坑工程的安 全,一旦止水帷幕出现大规模的渗漏涌漏而失效,势必影响到基坑体系的安全及危害到基坑周边建筑物、地下管 线、道路等市政设施.针对某工程一级深基坑止水帷幕失效后,所进行有针对性的基坑综合治理措施的理论与实 践研究,采用坑外注浆封堵、坑内挂网喷浆封堵、坑外深井降压等治理措施.基坑监测表明,基坑再未出现渗漏现 象,治理效果良好. [关键词]地下工程;深基坑;止水椎幕;涌漏;治理 [中图分类号]TU473.2 [文献标识码]A [文章编号]1002-8498(2013)16-0105-06 Seepage Treatment on Some Deep Foundation Excavation After Waterproof Curtain Failure Ren Binxiang' Guo Weiping (1.Longyuan Construction Group Co.Lad.Shanghai 200434 China; 2.Haoji Engineering Construction Co.Lad.Suzhou Jiangsu 215000 China) Abstract:Waterproof curtain is one of the important measures to prevent groundwater influx and ensure the normal construction of the underground structural space in deep foundation excavation.Its proper working is directly related to the safety of the entire excavation procedure.Massive water influx as a result of waterproof curtain failure will inevitably impair the safety of the foundation excavation and further endanger the surrounding buildings as well as underground pipelines roads and other municipal facilities.After the failure of the waterproof curtain for a deep foundation excavation project theoretical and practical research were performed to the treatment measures including grouting outside the excavation the hanging mesh shotcrete plugging inside the excavation pressure reduction with ...
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