【摘要】：為了改善黃河上游寧蒙河段的淤積現(xiàn)狀,本文利用上游龍羊峽、劉家峽水庫聯(lián)合運行調(diào)度,人造可控洪峰以沖刷河道。首先分析了水沙調(diào)控的最佳時機、構(gòu)建了水沙調(diào)控指標體系;其次,建立了多目標的水沙調(diào)控模型,采用改進帶精英策略的快速非支配排序遺傳(NSGA-Ⅱ)求解模型,量化了豐水年或偏豐水年的水沙調(diào)控成果;再次,以四維矢量坐標系代表各調(diào)控目標,對不同年份的水沙調(diào)控成果進行敏感性分析,闡明了調(diào)控流量、供水等變量對各調(diào)控目標的影響;最后,揭示了各調(diào)控目標之間的相互轉(zhuǎn)化關(guān)系。研究成果對開展黃河上游水沙調(diào)控具有重要的指導意義。
[Abstract]:In order to improve the siltation status of the Ningmeng reach in the upper reaches of the Yellow River, this paper uses the upper reaches of Longyang Gorge and Liujiaxia Reservoir to operate and dispatch jointly, and artificial controllable Hong Feng is used to wash the river course. Firstly, the optimal timing of water and sediment regulation is analyzed, and the index system of water and sediment regulation is constructed. Secondly, the multi-objective model of water and sediment regulation is established, and the NSGA- 鈪，

本文編號：2235126