港航黄河下游生产堤对滩区分滞洪影响(含外文翻译）.docxVIP

黄河下游生产堤对滩区分滞洪的影响摘要黄河下游滩区河道主槽两侧修建生产堤缩窄了洪水过流断面,对防洪造成了一定影响。留存还是废除,再一次成为黄河下游防洪与减灾决策的焦点。本文以夹河滩～高村河段为研究区域,利用DHI公司开发的MIKE21软件，建立平面二维数值模型,对现状生产堤和废除生产堤两种工况条件进行典型频率洪水演进的模拟。全文主要的研究内容：1）针对研究课题，收集黄河下游河段的基本资料。经整理分析得到该课题题目的来源及研究的意义。2）整理夹河滩～高村河段上现存的生产堤的资料，得到生产堤的来由、建造标准及其存在的利弊。3）学习MIKE软件，建立夹河滩～高村河段的平面二维数值模型。模拟计算出现有生产堤和废除生产堤两种不同工况下“96.8”洪水的演进过程、河道流速、河道洪水水位。4）比较分析两种工况下，禅房、东坝头、石头庄、青庄和榆林五个测站的水面高程及洪峰流量下的淹没面积。进而综合分析生产堤存在的利弊，考虑生产生活的需要以及生产堤对防洪的影响等方面，对它进行统一规划。为了维持黄河河槽活力，协调人河关系，抑制二级悬河发展，黄河下游河道生产堤的治理方案是比较适宜的。关键词：生产堤；防洪；洪水演进；数值模拟；MIKE21模型中图分类号：TV871INFLUENCE OF THE YELLOW RIVER DOWNSTREAM PRODUCTION OFBEACH DISTINGUISH FLOOD EMBANKMENTABSTRACT：The production dike which is built on the both sides of the lower reaches of the Yellow River main channel has some impact on the flood control. Retention or abolition, becomes the focal point of flood control and decision of the disaster reduction once again. In this paper, choosing Jiahetan to high village river as study area, a two-dimensional numerical model was established to simulate the evolution of the typical flood frequency on two conditions of production dykes and demolishing, using the DHI MIKE21 software. The main research contents: 1) According to the research,collecting the basic data of the Yellow River then getting the source and the significance of the research. 2) organizing the related material of production dykes between Jiahetan and high village, getting the production levee reason, standards of construction and its existing stakes.3) learning MIKE software, establishing a two-dimensional numerical model of Jiahetan to high village river. Simulating and calculating the 96.8 flood evolution process, river flow, river flood water level under the two different kinds of working conditions of the existing production dike and demolishing. 4) analysis the water surface elevation, the flow field and the flooded area of the peak flow on Buddhist temple, Dongba head, the stone village, Qing Zhuang and Yulin .Comprehensive analysis of the advan