摘要
百色水利枢纽地下厂房布置在辉绿岩体内 ,围岩以Ⅲ类为主 ,具有节理裂隙发育、完整性差、岩石硬而脆的特点 ,施工时突破传统开挖方法 ,提出了“岩壁梁岩台二序开挖”的新方法 ,取得了良好的开挖效果。
The underground powerhouse of Baise multipurpose dam project is accommodated in the diabase body which mostly ranks rockmass of class III featuring developed joint fissure, poor integrity, hard and brittle rock. The construction contractor break through traditional excavation mode, design a new method characterized by 2-sequence excavation of rock bench for rock face beam. This method renders good excavation result and is a new way for excavation of rock bench for rock face beam under unfavorable geological condition.
出处
《广西水利水电》
2004年第B05期116-117,127,共3页
Guangxi Water Resources & Hydropower Engineering
关键词
地下厂房
岩壁梁
岩台开挖
围岩
节理裂隙
Rock face beam
excavation of rock bench
underground powerhouse
rockmass of class III
