摘要
溧阳抽水蓄能电站地下厂房工程地质条件差,特别是F54断层对地下厂房顶拱与边墙影响较大,对顶拱采取了"预应力锚索+喷钢纤维混凝土+系统锚杆+钢筋肋拱"的组合锚固处理方案,对边墙采取固结灌浆进行补强。监测资料表明,主厂房F54断层处围岩应力应变数值均处于收敛状态,说明所采用的处理措施和施工方法是有效合理的,保证了地下厂房的安全和稳定。
The engineering geological conditions of underground powerhouse in Liyang Pumped-storage Power Station are poor, especially the F54 fault has serious impact on the crown arch and sidewalls of powerhouse. The crown arch is treated by the combination of pre-stressed anchor cable, sprayed steel fiber reinforced concrete, anchor rods and reinforced rib arch. The actual monitor shows that the stress-strain values of main powerhouse＇s surrounding rocks at F54 fault are in a state of convergence. It means that the treatment measures and construction methods are effective and reasonable, and can ensure the security and stability of underground powerhouse.
出处
《水力发电》
北大核心
2013年第3期71-72,75,共3页
Water Power
关键词
地下厂房
断层
开挖
支护
溧阳抽水蓄能电站
underground powerhouse
fault
excavation
support
Liyang Pumped-storage Power Station
