施工导流在牛栏沟电站的应用

Application of Three Phases Construction Diversion on Niulangou Hydropower Station

牛栏沟水电站为低水头大流量河床式小水电站,所处关河系山区河流,河道狭窄,洪枯流量相差较大。通过选择合理的导流方案,永临结合,以泄洪闸兼作导流明渠,解决了枢纽布置的困难,减少了导流工程投资,采用3期施工导流,确保了工程安全度汛和发电工期。

Niulangou hydropower station is a small scale run-of-river hydropower project with low water head but large flow. Guanhe River, where the project is located in, belongs to mountainous river, its channel is narrow, and fiver flow between wet season and dry season is significant difference. Reasonable diversion plan, permanence in conjunction with temporary, and sluice gate used also as open channel would together facilitate the pivot layout, and reduce the investment in diversion engineering. Furthermore, the application of three phases construction diversion would ensure the safety of the project during the flood period and the time requirement of commissioning.