丹江口水库汉江干流库区近期淤积规律分析  

Regularity of Recent Sedimentation in Danjiangkou Reservoir Area of Mainstream Hanjiang River

作　　者：林云发 罗媛 叶志雄 赵义军 

机构地区：[1]长江水利委员会水文局汉江水文水资源勘测局,湖北襄阳441022

出　　处：《长江科学院院报》2014年第7期7-12,共6页Journal of Changjiang River Scientific Research Institute

摘　　要：丹江口水库修建后,改变了原有天然河道的水沙输移条件,入库水沙经多年人工调度运用,形成了一定的水库冲淤规律。以往研究成果分析仅至2003年,为了对近期水库淤积情况进行了解,根据2003,2009,2011年丹江口水库断面测量资料,利用断面法进行淤积量计算;根据计算结果,对汉江干流库区的纵、横、垂3向的淤积分布进行了详细的对比分析。结果表明:水库淤积速度较以往减缓;淤积部位仍是宽阔段淤积多,狭谷段淤积少。The construction of Danjiangkou reservoir has changed the natural water and sediment conditions. After years of operation,the riverbed in the reservoir was reformed. Previous researches only dealt with the period up to2003. To understand the recent sedimentation in the reservoir,we calculated the sedimentation using method of section based on section data of Danjiangkou reservoir in 2003,2009 and 2011. According to the calculation result,the sediment distribution in longitudinal,transverse and vertical directions are compared and analyzed. Results reveal that sediment deposits more at wide sections than at narrow valleys,with the entire sedimentation rate attenuating.

关 键 词：丹江口水库 汉江干流 淤积规律 水沙输移 

分 类 号：TV145[水利工程—水力学及河流动力学]