白水江三级水电站山体内双室溢流式调压井布置特点  

Layout characteristics of double-chambers overflow surge shaft in mountain for Baishuijiang Hydropower Station Ⅲ

作　　者：张泽辉 娄绍撑 余学彦 

机构地区：[1]浙江省水利水电勘测设计院,浙江杭州310002

出　　处：《水利水电技术》2012年第3期30-32,共3页Water Resources and Hydropower Engineering

摘　　要：白水江三级水电站山体内双室溢流式调压井是针对稳定断面较大、不适宜大规模明挖的低水头、大流量引水式水电站提出的,将调压井移至地质条件较好的山体内,避开表层深厚松散堆积层,缩小上室开挖跨度,通过设溢流洞和下室降低井筒高度,通气洞兼做施工支洞,解决了调压井的安全问题,并节省了工程投资。The double-chambers overflow surge shaft in mountain is proposed for the low head and large flow rate diversion-type hydropower station(Baishuijiang Hydropower Station III) with a larger stable cross-section;for which the construction of large scale open excavation is not so suitable.Under this condition,the surge shaft is built inside of the mountain with a better geological condition,so as to keep away from deep and soft deposit layer of the surface and reduce the excavation span of the upper chamber.Furthermore,the height of the shaft body is lowered through the arrangement of both the overflow-adits and the lower chamber,and moreover,the ventilation adits are taken as the temporary construction adits as well.In this way,not only the safety problems possibly occurred therein are solved,but the project t investment is also save.

关 键 词：双室溢流式调压井 水电站布置 白水江三级水电站 

分 类 号：TV7[水利工程—水利水电工程]