某水电站引水隧洞工程不良地质洞段施工方案探讨

摘要

本文通过对某水电站引水隧洞不良地质洞段工程概况、现场状况的分析，重点讨论了Ⅳ类（或Ⅳ～Ⅴ类）围岩的施工方法与措施。%Construction method and measures of class IV (or class IV to V)rock are mainly discussed in the paper through analyzing project overview and site condition in poor geological tunnel section of water diversion tunnel for a hydropower station.