摘要
锦屏一级水电站6,8号场内公路隧道地质围岩差,且受现场地形限制,大型开挖设备无法施展,特别是支护施工所需的材料基本靠人工搬运,隧道的安全开挖施工难度大。介绍6S2洞室K1+035m段开裂处理和K1+047～K1+067m塌方处理方案,为类似地下工程施工提供借鉴和参考。
With poor geological conditions of the surrounding rocks of tunnels for No. 6 and 8 access roads for Jinping I hydropower station, and constrained by local topography, it is impossible to use large excavation equipment. Especially the materials necessary for support construction are basically transferred by labor, which causes great difficulty to the tunnel excavation. The paper describes the alternatives for treating cracks at K1 ＋035 m section in 6S2 cavern and collapse at K1 ＋047 - K1 ＋067 m sections, providing references for similar projects.
出处
《西北水电》
2009年第5期28-31,共4页
Northwest Hydropower
关键词
不良地质围岩
隧道
开挖支护
surrounding rock in poor geologic conditions
tunnel
excavation support
