多闸孔连续尾坎溢流坝优化调度数值模拟研究  

Numerical Simulation Research on Optimal Operation of Multi-gate Continuous Tail Overflow Dam

作　　者：郭红民[1] 柳滔 胡海松 伍学文 张杨 杨莹 张淑梅 GUO Hongmin;LIU Tao;HU Haisong;WU Xuewen;ZHANG Yang;YANG Ying;ZHANG Shumei(College of Hydraulic and Environment Engineering,China Three Gorges University,Yichang 443002,Hubei,China;Guangxi Youjiang Water Conservancy Development Co.,Ltd.,Nanning 530000,Guangxi,China;Anhui Provincial Construction Engineering Quality Supervision and Inspection Station,Hefei 230000,Anhui,China;Changjiang Geotechnical Engineering Corporation (Wuhan),Wuhan 430000,Hubei,China)

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002 [2]广西右江水利开发有限责任公司,广西南宁530000 [3]安徽省建筑工程质量监督检测站,安徽合肥230000 [4]长江岩土工程总公司(武汉),湖北武汉430000

出　　处：《水力发电》2019年第7期94-98,共5页Water Power

基　　金：水利部公益性行业科研专项项目(201401027);三峡大学学位论文培优基金资助项目(2018SSPY022);中国电力建设股份有限公司重大专项《水电工程水文气象重大关键技术应用研究》

摘　　要：以实际工程南甲水库泄洪的物理模型试验成果为基础,采用数值模拟的方法,针对调度中的各级流量,对多闸孔连续尾坎溢流坝闸门优化调度运行进行研究,通过对坝面流态、坝面时均压强、挑流形态、下游河道流速、下游河床压强和消能率等因素综合分析得出,当泄洪流量为中小流量时,闸门以少开孔开中间孔且均匀开启的原则有利;当泄洪流量较大时,则以五孔均匀开启有利。计算还发现,消能率随下泄流量的增加呈减小的趋势,且减小幅度在流量较大时更明显。Based on the results of flood discharge model test of Nanjia Reservoir,the numerical simulation method is used to study the optimal operation of multi-gate continuous tail overflow dam under different discharge flow. According to the comprehensive analyses on dam surface flow state,dam surface pressure,picking pattern,downstream river flow velocity,downstream riverbed pressure and energy dissipation rate,it is concluded that,(a) when the flood discharge flow is medium and smaller,the principle that opening the gates in middle position with uniform opening is favorable;and (b) when the flood discharge flow is larger,it is advantageous to open five gates uniformly. The calculation also finds that the energy dissipation rate is decreased with the increase of discharge flow,and the decrease magnitude is more obvious when the flow rate is larger.

关 键 词：连续尾坎 溢流坝 优化调度 数值模拟 

分 类 号：TV663[水利工程—水利水电工程]