深基坑工程承压水突涌事故规律与防范措施实例分析  

Example Analysis on Laws and Preventive Measures of Deep Foundation Pit Confined Water Abrupt Gush Accident

作　　者：叶向前[1] 

机构地区：[1]杭州市勘测设计研究院,杭州市310012

出　　处：《勘察科学技术》2014年第5期38-41,共4页Site Investigation Science and Technology

摘　　要：在高水头承压含水层区域实施的深基坑工程将受到承压水突涌威胁。该文分析承压水突涌的原因和诱因,结合场区水文地质条件,分析杭州某新城区近年来发生的数起基坑突涌实例的原因,总结基坑承压水突涌的工程处理措施,探讨承压水突涌事故的发生规律和抢险经验,提出事前确保孔洞封堵质量和事中做好应急预案是防范承压水沿孔洞突涌的主要措施。The deep foundation pit engineering of high head confined aquifer area will be threatened by confined water abrupt gush. This paper analyses the reason and cause of confined water abrupt gush, and analyses the reason of a number of foundation pit abrupt gush instances in a new urban district of Hang- zhou in recent years, combined with the hydrogeological conditions in jobsite. Then we summary the en- gineering treatment measures for foundation pit confined water abrupt gush, and discuss the occurrence rule and rescue experience of confined water abrupt gush accidents, and put forward that ensuring the quality of hole sealing before accidents and making emergency response plans in accidents are main pre- ventive measures for confined water abrupt gush along the holes.

关 键 词：承压水 深基坑 突涌 孔洞 防范措施 

分 类 号：TU46[建筑科学—结构工程]