永庆反调节水库枢纽布置设计特点

Design character of complex layout in Yongqing equalizing reservoir

永庆水库是丰满水电站的反调节水库，枢纽布置时要考虑丰满水电站调峰运行时的下泄流量以及保持不间断地向下游供水等因素，泄水建筑物需具备挡水、供水和泄洪功能，布置比较复杂。文章着重介绍了枢纽布置方案的比选、泄水闸、自由溢流坝、混凝土重力坝及砂砾石坝的设计特点。

Yongqing reservoir is an equalizing reservoir of Fengman hydropower station. Elements of the discharge during hump modulation of Fengman hydropower station and continuously water supply to downstream are considered, the outlet works must have functions of water retaining, water supply and flood discharging, so the layout is complex. The paper introduces the choice of complex layout and design character of outlet gate, free spillway dam, concrete gravity dam and sand and gravel dam.