【作者】 骆文广； 陆晶； 詹义正；

【Author】 LUO Wenguang;LU Jing;ZHAN Yizheng;State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University;Sewage Sludge & Silt Research Center,Wuhan University;

【机构】 武汉大学水资源与水电工程科学国家重点实验室； 武汉大学污淤泥研究中心；

【摘要】 为了研究水库库区排沙影响因素与排沙能力的响应关系,本文总结多个水库的泥沙模型试验成果,在考虑水流条件(流量与坝前水位)的主要影响因素前提下,对比分析了模型试验中工程因素(排沙孔布置和大小)、调度因素(排沙孔开启孔数与开启度)以及泥沙因素(泥沙粒径与入库泥沙含量)与水库库区排沙效果的响应关系。研究成果表明:水库工程因素决定库区泥沙淤积形态,调度因素影响库区泥沙淤积范围,泥沙因素决定了库区泥沙淤积高度和冲刷难度。在掌握库区排沙影响因素与排沙效果之间响应关系后,可以得到水库库区排沙工程措施的优化方法,为保障水库泥沙淤积后的有效库容提供科学的理论依据。更多还原

【Abstract】 In order to study the relationship between the influence factors and the ability of sediment flushing at reservoirs,the sediment model experiment results of several reservoirs were analyzed in this paper.Ther response relationship between engineering factors(layout and size of sediment discharge hole),scheduling factors(opening number and degree of sediment discharge hole),sediment factors(sediment grain size and sediment content) and sediment flushing effect at reservoirs have been deeply studied and analyzed by comparing their results under considering the main influencing factors of water flow condition(flow and water level).Research results show that:the sediment morphology at reservoirs was determined by the engineering factorsand the sediment deposition range at reservoirs was affected by the scheduling factors,and the sediment deposition height and the scouring difficulty at reservoirs was impacted by the sediment factors determine.The optimization method of the measures for the drainage of sediment would be obtained after the relationship between the influence factors and the sediment flushing effect at reservoirs,which can provide scientific theoretical for the effective storage capacity of reservoir siltation.更多还原