浪石滩水电厂施工期尾水临时封堵方案选择

Choice of temporary closure scheme of tailwater of Langshitan Hydropower Plant in construction period

浪石滩水电厂装有3台水轮发电机组,其3个尾水孔管出口,在施工期需要临时封堵,其中1孔可以利用尾水永久检修门封堵,另2孔计划采取简易封堵方法。对5种临时封堵方案的优缺点进行了分析比较。

The Langshitan Hydropower Plant has three hydro-generating units,the draft tubes of them have to be closed up temporaryly in construction period;one of them may be closed up with tailrace gate;the others are planned to be closed up with simple measures;the advantages and disadvantages of five alternative closure schemes are compared and one from them is chosen out.