【作者】 李一平； 程永东；

【Author】 Li Yi-ping Cheng Yong-dong (Guangdong Research Institute of Water Resources and Hydropower, Guangdong 510610,China)

【机构】 广东省水利水电科学研究院；

【摘要】 虎局水库溢洪道改建工程设计是为满足虎局水库加固扩容的要求,在原溢洪道的基础上,因地制宜地顺直闸室与泄槽轴线布置,改善了流态;将原无闸控制的宽顶堰改为有闸控制的驼蜂堰,不仅运行调度灵活,而且增大泄洪能力;在原泄槽设置阶梯,利用阶梯跌流、漩涡、渗气等作用使大部分能量在泄槽段消除,减轻消力池的消能压力及对池后河床冲刷．确保了工程的安全。该溢洪道建成后,已多次泄洪,水流平稳,消能效果好。本文所介绍的虎局水库溢洪道改建工程设计选择的泄洪消能布置及型式,具有因地制宜、节约投资、运行灵活、泄洪安全等优点,对类似的中小型水库除险加固溢洪道改建工程设计有参考价值。更多还原

【Abstract】 The design of the reconstruct project of the Huju reservoir spillway is to meet the need of the consolidation enlargement of the Huju reservoir, to straighten the axis of the sluice and the outlet chute according to local conditions, and to improve the flow pattern. Transform the former no -sluice wide-top weir into sluice-controlled hump weir can make the dispatching more easy and increase the flood discharge capability. Install stairway in the outlet chute to utilize the water drop, vortices and aerification to dissipate most of the energy in the chute in order to reduce the pressure of the stilling basin and the scour of the riverbed behind the stilling basin which will ensure the safety of the project. The spillway has operated many times after its construction, while the flow is steady and the energy dissipation is good. This paper presents the arrangement and type of the flood discharge and energy dissipation adopted in the reconstruct project of the Huju reservoir spillway, which is suitable to local conditions, saving on expenses, flexible in operation and safe in flood discharge. And this investigation can provide references for the spillway consolidation and reconstruct projects in those similar medium-size and mini-size reservoirs.更多还原