灵关水电站压力管道斜井开挖施工技术  

Construction Technology of Inclined Shaft Excavation for the Penstock of Lingguan Hydropower Station

作　　者：李东强 董雪梅 孟凡朋 LI Dongqiang;DONG Xuemei;MENG Fanpeng(Sinohydro Bureau 10 Co., LTD, Dujiangyan, Sichuan, 611830)

机构地区：[1]中国水利水电第十工程局有限公司

出　　处：《四川水力发电》2019年第4期108-111,共4页Sichuan Hydropower

摘　　要：灵关水电站压力管道所处的地质条件极为复杂,岩体极破碎,裂隙极发育且伴有裂隙水存在,洞室围岩稳定性极差,极易产生坍塌。对于此类复杂地质条件下的压力管道斜井开挖及安全临时支护,其安全问题尤为突出,施工难度很大。阐述了灵关水电站压力管道斜井导井及斜井扩挖采用的施工技术。The penstock of Lingguan Hydropower Station is situated in a very complex geological condition where the rock mass is extremely fragmented, the fractures are extremely developed and accompanied by fracture water. The stability of the surrounding rock of the cavern is very poor which is very easy to collapse. For the excavation and safety temporary supporting of inclined shaft of penstock under such complex geological conditions, the safety matters are particularly prominent and the construction is very difficult. The construction technology of inclined guide shaft and inclined shaft expansion excavation applied for the penstock of Lingguan Hydropower Station is expounded.

关 键 词：压力管道斜井 Ⅴ类围岩 开挖及支护 施工与安全 灵关水电站 

分 类 号：TV7[水利工程—水利水电工程] TV554