摘要
随着水电建设的深入,许多工程都面临地质条件趋差的情况。通过对硗碛电站坝区软弱破碎围岩隧洞开挖施工的调查研究,提出了此类围岩变形的破坏机理,研究了进行软弱破碎围岩隧洞开挖施工的方法,对不良地质隧洞的施工具有一定的参考价值。
With deeper excavation, many hydropower projects face a trend of poor geologic conditions. Based upon investigation study of tunnel excavation in soft fractured surrounding rock in the dam area of Qiaoqi hydropower project and its tunnel excavation method, the destruction mechanism concerning this sort of surrounding rock is put forward, which has certain reference for construction of unfavorable geologic tunnel.
出处
《西北水电》
2007年第3期51-55,共5页
Northwest Hydropower
关键词
光面爆破
锚喷支护
变形破坏
冒顶
smooth blasting
bolting and shotcreting
deformation failure
roof fall
