太行山隧道富水宽张裂隙注浆堵水技术研究  

Research on the Grouting and Blocking Water Technology in the Water Rich Broad Patulous Cranny on Taihang Mountain Tunnel

作　　者：张民庆 张亮 何志军 彭峰 张晓华[3] 

机构地区：[1]中国铁路总公司工程管理中心,北京100844 [2]北京中铁瑞威基础工程有限公司,北京100055 [3]中铁十八局集团有限公司,天津300222

出　　处：《铁道工程学报》2015年第1期104-109,共6页Journal of Railway Engineering Society

摘　　要：研究目的:太行山隧道施工中遇到富水宽张裂隙带,左线长度218 m、右线长度200 m,超前探孔单孔最大涌水量230 m3/h,水压0.8 MPa,围岩为Ⅲ级石英砂岩。施工中先后研究采取全断面帷幕注浆、带水作业、周边注浆等方法。研究结论:(1)三种方法均可以满足开挖要求,施工进度分别为25 m/月、20 m/月、39 m/月,周边注浆处理该类地层更有优势;(2)带水作业必须满足超前探孔单孔出水量小于40 m3/h、总涌水量小于300 m3/h、破碎裂隙段长度小于3 m的要求,否则施工安全和进度无法保证;(3)周边注浆与全断面帷幕注浆相比,注浆孔数量减少59%,注浆时间缩短56%,进度提高56%;(4)全断面帷幕注浆采用2 L/(min·m)作为检查孔出水量标准是合适的,并可适度放宽,周边注浆可采用5 L/(min·m)的标准;(5)本研究成果可在类似富水宽张裂隙地层注浆堵水施工中应用。Research purposes： In the construction of the Taihang Mountain tunnel, the water rich and wide tension fissure zone is encountered, which the left line length is 218 m, the right line length is 200 m, single hole maximum gushing water pressure is 230 m3/h, 0.8 MPa prediction, surrounding rock is grade m quartz sandstone. Construction has taken full face curtain grouting, work with water and peripheral grouting method. Research conclusions： （ 1 ） The three methods can meet the requirements of excavation, construction progress are 25 m/month, 20 m/month, 39 m/month, peripheral grouting treatment of the formation has more advantages; （2） Construction with water must satisfy the advanced hole drilling single hole water is less than 40 m3/h, the total water amount is less than 300 m3/h, broken crack length is less than 3 m, otherwise, the construction safety and schedule cannot be guaranteed ; （3） Compared to the full face curtain grouting, grouting hole of the surrounding grouting reduces 59%, grouting time shortens 56%, schedule 56% ; （4） The whole section curtain grouting by using 2 L/（min · m）as the inspection hole water standard is appropriate, and can relax, standard; （5） The research findings can be similar to water rich construction application peripheral grouting can adopt 5 L/（ min ·m） standard; （5） The research findings can be similar to water rich broad patulous cranny grouting water shutoff in construction application.

关 键 词：富水宽张裂隙带 注浆 带水作业 进度 

分 类 号：U25[交通运输工程—道路与铁道工程]