上游河道缩窄对泸定河段水流影响分析  

Analysis on influence of narrowed river channel in upper reaches on water flow of Luding reach

作　　者：杨彦龙[1] 张小峰[1] 卢新华[1] 黄良文[2] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]成都勘测设计研究院,四川成都610072

出　　处：《人民长江》2009年第15期80-82,97,共4页Yangtze River

基　　金：国家自然科学基金资助项目(50579054)

摘　　要：以泸定电站上游堤防工程为例,采用河道平面二维数学模型对堤防工程修建前后的水流变化进行了数值模拟和计算,为工程的可行性认证提供初步依据。计算结果表明:堤防工程修建后,无论泸定电站修建前还是建成蓄水后,河段均出现两个壅水区和两个跌水区;主河道流速变化不大,主流位置和主流带流速稍微右移。对同类工程的论证有借鉴和参考作用。Taking the levee in the upper reach of Luding station as an example,the paper uses numerical method to simulate the water flow changes before and after the construction of levee by the mathematical model of the two-dimensional plane river course.The results show that,after the construction of the levee project,regardless of Luding power station built before or run yet,there are two river backwater areas and waterfall areas,the velocity of the main course of river changes little,and the main stream position and its velocity move right slightly.This result gives reference to other similar projects.

关 键 词：平面二维 数学模型 堤防工程 泸定电站 

分 类 号：TV871[水利工程—水利水电工程]