北京地铁百子湾站基坑渗漏综合处理技术  

Comprehensive Treatment Technology against Water Seepage of Foundation Pit of Baiziwan Station on Beijing Metro

作　　者：白俊[1] 马晓华 

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000 [2]中铁七局集团第二工程有限公司,西安710000

出　　处：《铁道标准设计》2013年第9期86-89,共4页Railway Standard Design

摘　　要：针对北京地铁7号线百子湾站基坑开挖后,出现大量渗漏的情况,采用疏干井抽水、分段开挖挂网喷混凝土支护、截断从基坑东边流向西边的水源、增设应急预案降水井、水不漏等速效堵漏材料封堵、埋入带阀门的花管引流及袖阀管注浆技术等综合处理措施,确保施工顺利进行,保证了施工质量和安全。Large-scale water seepage once occurred at the foundation pit of the Baiziwan Station on Beijing Metro Line 7 after being excavated. And then comprehensive treatment measures were adopted as follows： pump water using dewatering well, support by wire mess shotcrete during excavating section by section, cut off the water source from east to west of the foundation pit, add dewatering wells for emergency response plan, use waterproof materials like plugging agent and waterproof paint, use embedded drainage pipes and use grouting technology with sleeve valve pipes, etc. Finally, by means of above-mentioned comprehensive treatment measures, the construction of this project was able to go on smoothly and safely with good quality.

关 键 词：基坑渗漏 综合处理 袖阀管 注浆 

分 类 号：U455.45[建筑科学—桥梁与隧道工程]