清江水布垭右岸地下电站布置方案的探讨

STUDY OF ALTERNATIVE LAYOUT FOR UNDERGROUND POWER STATION OF RIGHT BANK OF SHUIBUYA IN QINGJIANG RIVER

水布垭右岸地下电站厂区地层上硬下软 ,上部为栖霞组层状岩体 ,软硬相间 ,下部为马鞍组、黄龙群组和写经寺组软岩 ,其间还有相向对倾的断层 F2 ,F3的切割 ,地质条件复杂 ,软岩成洞问题十分突出。针对厂区的地形、地质条件 ,结合枢纽布置 ,开展主厂房、主变室、变电所、尾水洞出口等的位置研究 ,优化布置 ,探讨了电站建筑物的总体布置方案。

The upper layer of strata of the underground power station of right bank of Shuibuya is hard, but the lower layer is soft. The upper layer rock belongs to Qixia group, alternating with hard and soft rock, and the lower layer rock belongs to Ma′an, Huanglong and Xiejing group, dissected by facing dip fault F 3 and F 4. The geologic condition is quite complicated there, with the outstanding problem of soft rock caving. With the topographic and geologic condition in site, and the layout of project considered, the location study and layout optimization for main power house, main transformer house, substation and tail water tunnel outlet are carried out. Also, the general layout of power station construction is discussed.