锦屏二级水电站地下厂房岩壁吊车梁设计与施工  

Construction and design of rock-bolted crane beam in underground powerhouse of Jinping Ⅱ Hydropower Station

作　　者：方丹[1] 万祥兵[1] 陈建林[1] 补约依呷[1] 

机构地区：[1]华东勘测设计研究院,浙江杭州310014

出　　处：《水利水电技术》2013年第12期68-71,共4页Water Resources and Hydropower Engineering

摘　　要：锦屏二级水电站地下厂房岩壁吊车梁采用刚体极限平衡法设计,有限单元法复核,验证了岩壁吊车梁设计参数的合理性。针对锦屏二级水电站地下厂房地应力高、地质条件复杂、陡倾角裂隙发育的特点,从设计角度提出了对岩壁吊车梁施工技术和缺陷处理的具体要求,并对负荷试验前后的监测成果进行分析,验证了设计方法和结构措施的合理性。监测成果表明,岩壁吊车梁能够满足生产运行安全的要求。The rock-bolted crane beam in the underground powerhouse of Jinping Ⅱ Hydropower Station is designed by the rigid body equilibrium method and checked by the finite element method,and then the rationalities of the design parameters are verified as well.In accordance with the characteristics of the underground powerhouse of Jinping Ⅱ Hydropower Station,such as high ground stress,complicated geological condition,developed high dip angle unloading fissure,etc.,the specific requirements on the construction technology and defect treatment for the rock-bolted crane beam are put forward from the aspect of the design and the monitoring results before and after the load test are analyzed,meanwhile,the rationalities of both the design methods and the structural measures are demonstrated as well.The monitoring result shows that the rock-bolted crane beam can meet the requirement on the safety of the operation.

关 键 词：锦屏二级水电站 地下厂房 岩壁吊车梁 开挖 缺陷处理 原型观测 

分 类 号：TV731.6[水利工程—水利水电工程] TV271