Abstract: In order to reduce the adverse effect of the shock caused by Zhongzuipo bending discharge slot，to control the maximum lateral water surface difference as far as possible，to reduce the side-wall height on both sides and to make the flow velocity of water into the pond distribute equally，the engineering measures of floor transverse ultra-high combination guide wall in bending section were proposed． Through the serial model designs，the proposed scheme significantly improves the flow pattern，and it is also convenient for construction．

Key words: spillway, bending section, ultra-high, diversion wall, shock wave

摘要： 为降低中咀坡泄槽段弯道水流产生冲击波的不利影响，尽可能地控制最大横向水面差，减小两侧边墙高度，使 入池水流流速分布均匀，提出在弯曲段采用底板横向超高组合导流墙的工程措施。通过系列模型设计，该方案改善 流态作用效果明显，施工简便。

关键词: 溢洪道, 弯曲段, 超高, 导流墙, 冲击波