大朝山水电站截流设计与施工

Design and construction of the river closure for Dachaoshan Hydropower Station

大朝山水电站是在上游梯级漫湾电站控泄发电条件下截流的。这样可以减小截流难度，提前截流，加长一枯施工工期。预进占施工采取不连续施工，并在大流量到来之前做好堤头保护工作。截流成功后，连续高强度施工在国内少见。控泄发电结束后，漫湾电站可按５台机正常发电。总之，经过精心准备，科学组织施工，保证了大朝山水电站截流工程的圆满成功。

The river closure for Dachaoshan Hydropower Station was conducted under the conditions of controlling the water releasing for power generation in Manwan Hydropower Station in its upstream, which can reduce the difficulties of river closure to complete the river closure ahead of time and increase the construction time during the dry season. The pre advancement construction adopts the incontinuously construction and the protective work for the dam was prepared before the advent of large discharge. After the successful completion of the river closure, the continuous high strength construction is rare in China. After the end of controlling the water discharging for power generation, five generating units of the Manwan Hydropower Station will be put into operation. In a word, the careful preparation and scientific organization and construction have been guaranteed the satisfactory completion of the river closure for Dachaoshan Hydropower Station.