摘要
向家坝水电站超大跨度地下厂房处于相对较差的地质条件下,受多条断层和软弱夹层的影响且岩体节理裂隙发育,其施工期稳定性问题十分突出。对影响围岩稳定性的主要因素进行了分析,研究了其围岩稳定性特征,同时通过数值模拟研究了施工期围岩稳定性的相关规律和施工相关措施的影响,对同类超大跨度地下厂房的施工期稳定性研究具有重要的参考意义,对其设计和施工具有一定的指导作用。
At Xiangjiaba Hydropower Station,the extra large underground powerhouse is located in rock with relatively poor geological conditions and is affected by some faults and weak interlayers with developed rock joints.Therefore,rock stability during construction is prominent.In this paper,dominant factors influencing surrounding rock stability are analyzed and characteristics of surrounding rock stability are studied.In the same time,correlated rules of rock stability and influence of corresponding construction measures during construction are investigated by numerical simulation.The analysis results give references to other similar projects and provide guidance to project design and construction.
出处
《四川水力发电》
2009年第4期17-20,23,共5页
Sichuan Hydropower
