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一、概述 (一)枢纽简况清江是湖北省境內长江的一条主要支流,于宜都县注入长江。隔河岩水利枢纽是清江流域规划中河口以上第二个梯级,系开发清江的骨干工程。坝址位于长阳县城以上9.7公里,下距河口宜都62公里。枢纽正常高水位为200米,死水位160米,水库总库容34亿立米,有效库容22亿立米,为年调节水库,保证率95％的枯水调节流量为208秒立米。枢纽挡水建筑物的型式曾比较过堆石坝、空腹拱坝坝内厂房、混凝土重力坝和混凝土重
I. Overview (I) Overview of the Hub Qingjiang, a major tributary of the Yangtze River in Hubei Province, is injected into the Yangtze River in Yidu County. Geheyan Hydro-junction is the second cascade above the estuary in the Qingjiang River Basin planning and is the backbone project for the development of the Qingjiang River. Dam site is located in Changyang County, 9.7 km above the city, next to the estuary Yidu 62 km. The normal high water level of the hub is 200 meters, the dead water level is 160 meters, the total storage capacity of the reservoir is 3.4 billion cubic meters and the effective storage capacity is 2.2 billion cubic meters. The annual regulation of reservoirs is 95%. The types of hub retaining structures have been compared with those of rockfill dam, dam internal dam, concrete gravity dam and concrete weight