双沟水电站大坝施工截流设计

River closure design of dam construction for Shuanggou hydropower station

根据双沟水电站工程坝址处的地形地质条件、工程布置特点、坝型及第二松花江水文特性,进行导截流设计。说明了在高寒山区有上游水库帮忙条件下,面板堆石坝施工截流设计实施过程中,为减小截流施工的难度,除按理论计算结果进行充分准备外,还应改善截流条件,提高抛投强度,并充分考虑一切不利因素,以保证截流顺利成功。

Based on the topography and geology condition site, project layout characteristic and dam type of Shuanggou hydropower station dam, the hydrologic characteristic of the second Songhuajiang river, the river diversion and closure design is completed. In alpine region, with the reservoir in the upper reaches, many factors should be considered to reduce the difficulty of closure construction and ensure the closure success in the construction of the face rockfill dam, that include the full preparation of theoretical calculation results, improving closure condition, enhancing dumping intensity and considering all unfavorable factors.