發(fā)布時間：2018-07-03 07:04

  本文選題：蓄滯洪區(qū) + 洪水演算��； 參考：《南水北調(diào)與水利科技》2017年05期

【摘要】：基于實測斷面資料建立了研究區(qū)的一維水動力模型,基于高精度DEM以及1∶10000地形圖建立了研究區(qū)的二維水動力模型,并用MIKE FLOOD將一維模型和二維模型進(jìn)行耦合,構(gòu)建了洪澤湖周邊滯洪區(qū)一、二維耦合的洪水演進(jìn)數(shù)學(xué)模型。利用2003年歷史洪水資料對模型參數(shù)進(jìn)行了率定,并以2007年歷史洪水資料進(jìn)行了驗證。以洪澤湖百年一遇設(shè)計洪水為模型上邊界,二河閘、三河閘以及高良澗閘的現(xiàn)行調(diào)度方案的水位-流量關(guān)系為模型下邊界,對洪澤湖百年一遇設(shè)計洪水方案進(jìn)行模擬計算,當(dāng)蔣壩水位達(dá)到14.33m時,洪澤湖周邊滯洪區(qū)開始滯洪,得到開始滯洪后不同時段研究區(qū)內(nèi)各類洪水風(fēng)險要素的動態(tài)分布情況以及最大淹沒水深、淹沒歷時,驗證了模型的合理性,可用于蓄滯洪區(qū)洪水演算分析。
[Abstract]:The one-dimensional hydrodynamic model of the study area is established based on the measured section data, the two-dimensional hydrodynamic model of the study area is established based on the high-precision Dem and 1: 10000 topographic map, and the one-dimensional model and the two-dimensional model are coupled by Mike FLOOD. A two-dimensional coupled flood routing mathematical model is constructed in flood detention area around Hongze Lake. The model parameters are determined by using the historical flood data in 2003 and verified by the historical flood data in 2007. Taking the design flood once in a hundred years as the upper boundary of the model, the water-discharge relation of the current dispatching schemes of the Erhe sluice, the Sanhe sluice and the Gaoliangjian sluice as the boundary under the model, this paper simulates and calculates the design flood scheme of Hongze Lake once in a hundred years. When the water level of Jiangba reaches 14.33m, the flood detention area around Hongze Lake begins to stagnate. The dynamic distribution of various flood risk factors and the maximum depth and duration of flooding are obtained in different periods of time after the flood arrest, which verifies the rationality of the model. It can be used for flood calculation and analysis in flood storage and detention area.
【作者單位】： 河海大學(xué)水文水資源學(xué)院;浙江華東工程數(shù)字技術(shù)有限公司;
【基金】：江蘇省普通高校研究生科研創(chuàng)新計劃(KYZZ_0145;2015B31914)~~
【分類號】：TV122;TV873

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1 梁艷紅;基于Mike Flood的中小河流潰堤洪災(zāi)風(fēng)險分析[D];南昌工程學(xué)院;2017年

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本文編號：2092838