不良地质隧洞开挖的止水加固技术  

WATER STOP AND REINFORCING TECHNIQUE FOR TUNNELING THROUGH BAD GEOLOGICAL REGION

作　　者：唐爱松[1] 韩军[1] 夏熙伦[1] 

机构地区：[1]长江科学院岩基所,武汉430010

出　　处：《岩石力学与工程学报》2002年第7期1064-1067,共4页Chinese Journal of Rock Mechanics and Engineering

摘　　要：在某市供水网络干线工程1# 隧洞西坑段开挖施工中,采用深孔预注浆技术,成功地通过了西坑F38断层破碎带、溶槽、溶洞等特殊地质段,止住了大涌水和大塌方,遏止了地下水位下降,保证了地表建筑物安全和隧洞按期通水。Deep hole pre-grouting technique is applied to desist from water and reinforce country rocks in advance of tunneling. Using this technique in practical tunneling in a city,the stability of the country rocks was improved,and the tunnel had successfully passed bad geological region with fault,karst,water burst and large collapse. As a result,the safety of buildings on the ground and due data for water supply can be assured.

关 键 词：不良地质 隧洞 开挖 止水 回固 预注浆 双重管 

分 类 号：U455.7[建筑科学—桥梁与隧道工程]