受调水干渠影响的坡水区洪水数值模拟  

Numerical simulation of flood in furcate-conflux region affected with the transfer project

作　　者：孙东坡[1] 陈燕国[2] 王鹏涛[1] 廖小龙[3] 张晓雷[1] 

机构地区：[1]华北水利水电学院,河南郑州450011 [2]广东水利电力职业技术学院,广东广州510635 [3]中水珠江规划勘测设计有限公司,广东广州510610

出　　处：《泥沙研究》2007年第6期53-58,共6页Journal of Sediment Research

基　　金：国家十一五科技支撑计划项目(项目编号:2006BAB06B00-04)

摘　　要：本文建立了反映坡面串汇流特点的平面二维水动力数学模型,对南水北调(中线)总干渠穿越的安阳河串流区进行了自然与工程状态的洪水数值模拟。模拟成果很好地反映了总干渠左岸区域5条河沟在不同时刻洪水串流过程、淹没面积、淹没深度以及总干渠左岸沿线洪水位;同时针对淹没状况,对串流区各河沟穿渠建筑物的泄流能力、位置进行了分析研究。作者对一些穿渠建筑物的位置、泄流规模及方式提出改进方案,模拟显示修改方案有效改善了总干渠左岸局部积水淹没严重的不利状况,对总干渠工程设计及区域防洪评价有参考价值。A 2D numerical model is developed to simulate the characters of the furcate-conflux flow on the slope.Then the model is applied to the Anyang River with the typical character of furcated-conflux flow.The simulated results successfully reflect the furcate-conflux flowing,the submerged area and depth,the flood level at different time in the five rivers,which locate in the left bank side of the South to North Water Transfer Project.According to the submerged condition,the discharge capability and position of the construction going through the transfer project for the rivers are analyzed.An improved scheme to build the structures for the five rivers going through the transfer project is proposed,which could efficiently alleviate the negative effect of flood to the local area on the left bank side of the transfer project.

关 键 词：调水干渠 串流 平面二维数值模拟 淹没比 分流渠 

分 类 号：TV142[水利工程—水力学及河流动力学]