多级跌水模型在特大落差明渠排洪工程中的分析与应用设计

针对第八届全国少数民族传统体育运动会马术场馆明渠排洪设计中终点和起点排水总落差高达65 m,整个汇水面积为65万m~2,设计流量为14 m~3/s,排洪渠总长度超过2 600 m,应用多级跌水模型对其排洪明渠进行分散消能的跌水设计,按水流形态和沟槽发育规律分段治理,采用先分别截洪分散消能,再集中泄洪的方法,引导洪水就近排入周边水体的设计思路,实现安全排洪。

Analysis and application of multilevel waterfall model for great fall highness flood drain engineering

The fall highness of open channel in The 8~(th)National Minority Tradition Athletic Sports Horsemanship Gymnasium was 65m. The whole catchment area of horsemanship gymnasium was 65 ha,flood flow was 14m~3/s,the length of open channel was over 2 600m.Multilevel waterfall model was applied in the dispersing reduce energy design of the open channel.The open channel design method was safe,which based on stream form and groove growth law,using flood drain separateness and dispersing reduce energy first,reconcentrating the flood drain into the neighborhood river secondly.