蒿枝坝水库工程溢洪道侧堰水工模型试验研究

Hydraulic Model Test on Side Weir of Spillway in Haozhi Reservoir Project

结合蒿枝坝中型水库除险加固工程侧堰溢洪道水工模型试验研究,对侧堰溢洪道的泄流能力、堰面压力、水流流态、水面线等水力学特性进行了观测分析,比较了加大侧槽底坡与堰后加斜坡试验方案和加大侧槽底坡与侧槽左、右边加斜坡试验方案,推荐出堰后加斜坡试验方案,使流道内水深分布趋于均匀,过流能力得到提高。

Based on hydraulic model test of side channel spillway of Haozhi Dam Middle-Scaled Reservoir Rehabilitation and Strengthening Project, the characters of hydraulics involving capacity of flood release, pressure at the face of weir, the regime of flow and water surface profile have been observed and analysed. By comparing the experiment scheme of widening the side flume bed slope and adding incline slope behind the weir with the experiment scheme of widening the side flume bed slope and adding incline slope at both sides, this paper recommends the scheme of widening the side flume bed slope and adding incline slope behind the weir to improve the flow regime in the spillway and the discharge capacity.