三峡库区156m蓄水水文泥沙变化分析  

Analysis on hydrological and sediment variation during impoundment stage of 156 m in TGP Reservoir Area

作　　者：代文良 张娜 蒲菽洪 

机构地区：[1]长江水利委员会长江上游水文水资源勘测局,重庆400014

出　　处：《人民长江》2009年第9期7-9,共3页Yangtze River

基　　金：国家"十一五"科技支撑计划重点项目(2007BAB21B01-01A)

摘　　要：为掌握三峡水库2007年156m蓄水过程中库区水文河道变化情况,通过观测与分析三峡库区蓄水过程的水沙变化,探讨蓄水过程水位、河道比降及水文泥沙运动的变化规律,为三峡库区175m蓄水后的水面线对比分析、回水区的界定等研究打下基础,同时也为三峡库区175m正常蓄水运用后,三峡水库库尾重庆变动回水区河段的水沙冲淤变化、河道走沙规律分析研究提供了条件。In order to master the variation of hydrological regime and river channels for TGP Reservoir Area during 156 m impoundment stage in 2007,following work have been done,including observation and analysis on the flow and sediment variation in impoundment stage of the reservoir area,exploration on the variation laws of water level and channel gradient and sediment movement in the impoundment stage,so as to lay a foundation for relative analysis of water surface profiles and the study on definition of backwater zone etc.over the 175m impoundment stage;in the meantime,they can be helpful for the analysis on the variations of flow-sediment and scoring-silting and the sediment movement of river channel for the normal operation of 175m impoundment stage in the fluctuating backwater reach of Chongqing at the reservoir tail of TGP.

关 键 词：蓄水 水文泥沙 冲淤变化 泥沙观测 三峡水库 

分 类 号：P332.5[天文地球—水文科学]