金卢水库大坝泄水建筑物自由溢流与建闸方案比选  

Comparison and Selection of Free Overflow and Sluice Construction Schemes for Jinlu Reservoir Dam

作　　者：刘蒙娜 耿昕 张艺 LIU Mengna;GENG Xin;ZHANG Yi(Henan Water&Power Engineering Consulting CO.LTD.,Zhengzhou 450016,China)

机构地区：[1]河南省水利勘测设计研究有限公司,河南郑州450016

出　　处：《河南水利与南水北调》2022年第3期53-55,共3页Henan Water Resources & South-to-North Water Diversion

摘　　要：金卢水库作为洛河干流上游规划的一座中型水库,承担着非常重要的防洪任务。金卢水库建成后可将卢氏县从20年一遇防洪标准提高至30年一遇防洪标准。水库工程等别为Ⅲ等,设计洪水标准为100年一遇,校核洪水标准为1000年一遇。1000年一遇洪峰流量可达到6800 m^(3)/s,需要大坝泄洪设施有较大的过流能力,设计方案的选择优化尤为重要。文章在考虑正常蓄水位和汛限水位的基础上,初拟堰顶高程,通过对溢流坝段不同的泄流宽度进行多方案同深度的设计比选,选定了60 m宽的溢流堰净宽,在此基础上对自由溢流方案和建闸方案进行设计比选,从工程投资、运行管理、移民征迁等方面进行对比分析,选定了溢流堰净宽60 m的建闸方案为最优方案。可为类似工程设计方案的选择提供参考借鉴。Jinlu Reservoir,as a medium-sized reservoir planned in the upper reaches of Luohe River,undertakes very important flood control task.After the completion of Jinlu Reservoir,the flood control of Lushi Countyis raised from the once-in-20-year flood prevention standard to the once-in-30-year flood prevention standard.The grade of reservoir project is classified as ClassⅢ.The design flood standard is once-in-100-year,and the check flood standard is once-in-1,000-year.The peak discharge of flood in 1,000years can reach 6800 m^(3)/s,which requires the dam flood discharge facilities to have a relatively large flow capacity.Therefore,the selection and optimization of the design plan is particularly important.In this paper,based on the consideration of the normal storage water level and the flood limit water level,the elevation of the weir top is preliminarily simulated.The overflow weir with a width of 60m was selected by comparing the different discharge widths of the overflow dam section with the same depth.On this basis,the free overflow scheme and the sluice construction scheme are designed and compared.From the aspects of project investment,operation management,migration and so on,the optimal scheme is selected for the construction of overflow weir with 60m net width.This paper will be a good reference for the selection of similar engineering design schemes.

关 键 词：金卢水库 碾压混凝土坝 泄洪设施 建闸 自由溢流 

分 类 号：TV652.11[水利工程—水利水电工程]