塔里木河干流河道水沙数学模型及其应用  

Mathematical modeling of sediment transport and bed variation in the Main Stem Tarim River

作　　者：郭庆超[1] 陆琴[1] 张玉江[2] 邓安军[1] 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室水利部水沙科学与江河治理重点实验室,北京100048 [2]塔里木河流域管理局,新疆库尔勒841000

出　　处：《泥沙研究》2015年第3期1-7,共7页Journal of Sediment Research

基　　金：中国水科院科研专项(泥集1340)

摘　　要：塔里木河是我国最大的内陆河,系统地开展塔里木河干流水沙运动和河道演变规律研究起步较晚,成果也不多。根据非均匀悬移质不平衡输移运动基本原理,建立了干流水沙运动数学模型,并采用实测资料对模型进行了率定和验证。在此基础上,研究了塔里木河干流河道冲淤演变规律,给出年均冲淤量和沿程分布,为在缺乏实测冲淤资料情况下估算河道冲淤量及其分布提供了依据。并对未来塔里木河干流河道冲淤演变趋势进行了预测计算,给出了冲淤量和及其沿程分布,提出了进一步提高输沙效率和水资源管理水平以及降低防洪压力的措施和建议。Tarim River is the largest inland river in China. Before 2000, the research on the sediment trans- port and channel bed variation for Tarim River is very few. According to the basic theory of non-equilibrium transport of non-uniform sediment, a mathematical model for suspended sediment transport and bed variation in Tarim River is established. After sufficient calibration and verification of the model, it is applied to Tarim Riv- er to simulate the bed deformation. The annual sedimentation and its longitudinal distribution are then obtained by the model. The sedimentation percentages （the ratio of sedimentation amount to the incoming sediment load at Alaer station） for different river reaches are further analyzed. And the sedimentation in different river rea- ches of Tarim River in the future is predicted by the model. Finally, some suggestion and measures of how to raise the sediment transport efficiency, improve water resources management level and reduce the pressure of flood protection are proposed.

关 键 词：塔里木河干流 水沙运动 数值模拟 河道演变 

分 类 号：TV143[水利工程—水力学及河流动力学]