摘要
结合工程实例,通过分析层状岩体的破坏条件,分析董箐水电站中厚层砂泥岩中群洞开挖过程中围岩的稳定性,确定隧洞开挖工程中的施工关键技术,并进一步验证层状岩体中围岩的稳定性评价。
Combing with engineering case, this paper introduces stability of surrounding rock during group tunnels excavation in thick sand-mud stone by means of analyzing failure condition of layered rock mass in order to determine essential techniques in tunnels excavation construction. The stability of surrounding rock mass is further evaluated.
出处
《水电与新能源》
2012年第2期25-29,共5页
Hydropower and New Energy
关键词
砂泥岩
层状岩层
围岩稳定性
群洞开挖
董箐水电站
sand-mud stone
layered rock
surrounding rock stability
group tunnels excavation
Dongqing Hydropower Station
