小型水库泥沙淤积形态分析——以咸阳市屯庄水库为例  

Sediment accumulation morphological analysis for small reservoir——Taking Xianyang Tunzhuang reservoir as an example

作　　者：韩磊 HAN Lei(Xianyang Research Institute Water Conservancy and Hydropower Planning and Design,Xianyang 712000,China)

机构地区：[1]咸阳市水利水电规划勘测设计研究院,陕西咸阳712000

出　　处：《水利科学与寒区工程》2019年第2期37-40,共4页Hydro Science And Cold Zone Engineering

基　　金：国家"十二五"科技支撑计划(2011BAD29B01)

摘　　要：以咸阳市屯庄水库工程为例,采用判别系数法判断水库纵向淤积形态,分析确定了水库淤积末端位置及淤积部位,利用试算法合理确定小型水库泥沙淤积形态,提出了分析过程中应采用的方法和步骤,得出屯庄水库10 a淤积年限下,坝前淤积高程889.3 m,库区淤积总量为168.52万m^3,淤积面比降i_主=11.17‰;30 a淤积年限下,坝前淤积高程901.15 m,库区淤积总量为444.78万m^3,淤积面比降i_主=6.68‰;50 a淤积年限下,坝前淤积高程911.00 m,库区淤积总量为728.36万m^3,淤积面比降i_主=2.96‰。研究可为开展同类型水库泥沙淤积设计计算提供有益借鉴。Taking the Xinyang Tunzhuang reservoir as an example, the longitudinal sediment accumulation form of the reservoir is distinguished by the coefficient differentiation method firstly. And then, the end position of the sediment accumulation is determined and the sediment accumulation form of the reservoir is further determined by the trial method.In this process, the reasonable method and step during the analysis are proposed.From the numerical results, it can be found that, under the 10 a accumulation age limit, the accumulation elevation in front of the dam is 889.3 m, the total accumulation volume is 168.52 ten thousand m^3, the accumulation interface gradient is i主=11.17‰;under the 30 a accumulation age limit, the accumulation elevation in front of the dam is 901.15 m, the total accumulation volume is 444.78 ten thousand m^3, the accumulation interface gradient is i主=6.68‰;under the 50 a accumulation age limit, the accumulation elevation in front of the dam is 911.00 m, the total accumulation volume is 728.36 ten thousand m^3, the accumulation interface gradient is i主=2.96‰.The results and the method proposed in this paper provide the reference for the accumulation design of the similar reservoir.

关 键 词：小型水库 泥沙 淤积形态 椎体淤积 咸阳 屯庄水库 

分 类 号：TV697.3[水利工程—水利水电工程]