本文選題：克孜爾水庫　切入點：大庫盤水庫　出處：《新疆農(nóng)業(yè)大學》2014年碩士論文

【摘要】：水庫淤積,是泥沙研究的一個重要分支。水庫泥沙淤積會造成水庫庫容損失,致使水庫本身相應(yīng)效益有所降低,嚴重者甚至會導(dǎo)致水庫工程報廢。因此,人們?nèi)绾芜M行水庫淤積處理,保持和恢復(fù)在役水庫的相應(yīng)功能,已經(jīng)成為當前水利工作者關(guān)注的熱點問題之一。 克孜爾水庫是一座位于新疆多沙河流上典型的大型山區(qū)控制性水庫,而且是大庫盤水庫。首先,本文通過探究克孜爾水庫的來水來沙特征、泥沙淤積物運動規(guī)律、淤積現(xiàn)狀以及水庫排沙運用方式,分析了水庫淤積原因及其變化趨勢。然后,通過支流黑孜河庫段水工模型試驗,研究克孜河入庫段泥沙沖淤規(guī)律,提出導(dǎo)流堤與排沙渠聯(lián)合排沙方式,將支流段大部分泥沙通過溯源沖刷或異重流等方式排除庫外,以此來緩解克孜爾水庫的泥沙淤積問題。再者,通過水庫溯源沖刷的縱剖面形狀及其對應(yīng)關(guān)系建立了溯源沖刷過程縱剖面方程,又結(jié)合沙量平衡方程得出山區(qū)多沙河流上大庫盤水庫溯源沖刷排沙量和溯源沖刷長度估算公式,并且選用克孜爾水庫實測資料進行了相關(guān)驗證。最后,對相關(guān)研究成果進行歸納、概括,并對今后水庫沖淤排沙方面的研究提出了幾點展望。
[Abstract]:Reservoir siltation is an important branch of sediment research.The siltation of the reservoir will result in the loss of the reservoir capacity, which will reduce the corresponding benefit of the reservoir itself, or even lead to the abandonment of the reservoir project.Therefore, how to deal with reservoir sedimentation and maintain and restore the corresponding functions of existing reservoirs has become one of the hot issues concerned by water conservancy workers.Kizil reservoir is a typical large mountain area control reservoir located on the sandy rivers in Xinjiang, and it is also a large reservoir.First of all, this paper analyzes the reasons and trends of sediment accumulation in Kizil reservoir by exploring the characteristics of water and sediment, the law of sediment movement, the current situation of sediment deposition and the application mode of sediment discharge in the reservoir.Then, through the hydraulic model test of Heizi River reservoir section, the rules of sediment scouring and silting in Kezi River reservoir section are studied, and the combined sediment discharge method of diversion embankment and sediment drainage channel is put forward, and most of the sediment in the tributary section is excluded from the reservoir by means of traceability scour or heavy current, etc.In order to alleviate the problem of sediment deposition in Kizil reservoir.Furthermore, the longitudinal profile equation of traceability erosion process is established through the profile of the longitudinal section and its corresponding relationship.Based on the balance equation of sediment volume, the estimation formulas of traceability and scour length of Dakupan reservoir in mountainous area are obtained, and the experimental data of Kizil reservoir are used to verify the equation.Finally, the related research results are summarized, and some prospects for future research on scour and sediment discharge in reservoirs are put forward.
【學位授予單位】：新疆農(nóng)業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TV145;TV697.31

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本文編號：1689084