黄金峡水利枢纽工程泄洪消能设计研究  

Study on flood discharge and energy dissipation design for Huangjinxia Water Control Project

作　　者：颜家军 王智阳 王辉 王亮 周锐 YAN Jiajun WANG Zhiyang WANG Hui WANG Liang ZHOU Rui(Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430010, Hubei, China Hanjiang-to-Weihe River Valley Water Diversion Project Construetion Co. , Ltd. , Shaanxi Provinee, Xi＇an 710010, Shaanxi, China)

机构地区：[1]长江勘测规划设计研究院,湖北武汉430010 [2]陕西省引汉济渭工程建设有限公司,陕西西安710010

出　　处：《水利水电技术》2017年第8期40-43,54,共5页Water Resources and Hydropower Engineering

摘　　要：黄金峡水利枢纽工程具有洪峰流量大、泄洪消能建筑物规模大、运行条件复杂、水库调蓄能力小、河床宽度有限、下游水位变幅大等特点,泄洪消能及下游河岸防冲刷问题突出。为尽量减少溢流前缘宽度以及考虑到排沙、施工导流等,经多方案比较,最终确定采用表、底孔结合布置方式。由于泄洪表孔下游单宽流量大、下游水位高,经多方案分析比较和模型试验研究,表孔采用宽尾墩加戽式消力池消能型式,底孔采用底流消能型式,泄流能力满足要求。泄洪消能建筑物分二区布置,各工况下消能效果良好。研究所得成果为类似水利枢纽工程泄洪消能设计提供参考。As Huangjinxia Water Control Project has the characteristics of large flood-peak flow,large scale of flood discharge and energy dissipation structure,complicated operation condition,small regulation and storage capacity of reservoir,limited width of river bed,large fluctuation of downstream water level,etc.,the problems from flood discharge and energy dissipation as well as the anti-erosion of the downstream river banks are quite prominent. In order to reduce the width of the front edge of the overflow and consider desilting,construction diversion,etc.,the layout pattern of combining the surface outlet with the bottom outlet is finally determined to be adopted through the comparisons among several alternatives. Due to the larger downstream unit discharge and higher downstream water level of the surface flood discharge outlet,the energy dissipation pattern of flaring pier with bucket-stilling pool in surface spill ways and bottom-flow dissipation is adopted through the comparisons among several alternatives and the relevant experimental study. Flood discharging and energy dissipation structures are arranged in two zones,which lead to good effect under different conditions. The study result can provide a reference for the flood discharge and energy dissipation design of the similar project.

关 键 词：泄洪消能 宽尾墩 戽式消力池 黄金峡水利枢纽工程 

分 类 号：TV653[水利工程—水利水电工程]