班多水电站施工导流设计

Construction diversin design for Banduo hydropower project

班多水电站技施阶段施工导流采用枯水期明渠分期导流方案,可尽早实现主河床截流,使得首台机组发电工期提前6个月,二、三期导流充分利用泄洪闸过流,减小了导流工程规模及投资,取得了较好的经济效益。

At the detailed design phase for Banduo hydropower project,the alternative of staged diversion by open channel in dry period is adopted for construction diversion,which can realize closure of the main river as early as possible,so that the first unit will be commissioned 6 months in advance.At the second and third stage diversion,flow is discharged through the flood discharge gate as much as possible,which reduces the investment and scale of diversion works,and obtains good economic benefits.