天荒坪抽水蓄能电站高压输水道放空大修  

Overhaul of empty high-pressure diversion tunnel of Tianhuangping pumped storage power station

作　　者：王林林 WANG Linlin(Hangzhou Guodian Dam Safety Engineering Co.,Ltd.)

机构地区：[1]杭州国电大坝安全工程有限公司,浙江杭州310030

出　　处：《大坝与安全》2023年第5期67-71,共5页Dam & Safety

摘　　要：天荒坪抽水蓄能电站投运20年后,在6台机组球阀升级改造期间放空输水系统,对输水道等进行了大修,以消除安全隐患。大修过程中,创新漏水处理方式,首次利用智能无人机检查深斜井,采用化学灌浆和水泥灌浆治理集中射水点,免立模修复混凝土掉块缺陷,为类似工程提供参考。After 20 years of operation of Tianhuangping pumped storage power station,the water convey-ance system was emptied to overhaul diversion tunnel during the upgrade and renovation of ball valves for 6 units,which eliminated safety hazards.During the overhaul,the water leakage treatment method was innovated,the intelligent UAV was first used to inspect deep inclined shaft,the concentrated leak-age points were treated by chemical grouting and cement grouting,and the concrete peelings were re-paired without formwork,providing reference for similar projects.

关 键 词：抽水蓄能电站 高压输水道放空大修 无人机检查 灌浆 混凝土修复 

分 类 号：TV743[水利工程—水利水电工程]