全风化地层单管钻杆水平注浆技术研究与应用  

Research on single-pipe drilling retrusive grouting technology under completely-weathered granite and the application

作　　者：肖红渠[1] 

机构地区：[1]中铁十二局集团第四工程有限公司

出　　处：《山西建筑》2011年第17期147-148,共2页Shanxi Architecture

摘　　要：为了防止隧道开挖过程围岩失稳、坍塌,进行了注浆止水处理,介绍了单管水平后退钻杆式注浆工法的特点、步骤及关键技术,并结合工程实例介绍了其应用和注浆机理,以指导工程实践。In order to prevent the surrounding rock instability and collapse in the tunnel excavation process, it carries on grouting waterproofing processing, introduces the features, procedures, and critical technologies of single-pipe drilling retrusive grouting technology, and describes its application and grouting mechanism by integrating with engineering case, with a view to guide engineering practice.

关 键 词：全风化花岗岩 单管钻杆后退式注浆 机理 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]