摘要
金沙江下游的推移质输移规律及其泥沙来量和级配对梯级水库的淤积分布以及河势将产生长远影响,需要开展深入研究。通过对金沙江下游入库控制站三堆子水文站20082,009两年的推移质测验成果的分析,研究了该站沙质推移质的年内分布、横向分布、级配以及推移质输移与水位、流量、流速的关系。研究结果表明:三堆子河段全年都有沙质推移质的输移,推移量主要集中在汛期,尤以7～9月为甚;强推带为距起点距170～200m的范围内。
The bed load transport laws and incoming sediment load and gradation of lower reach of Jinsha River have a profound effect on sediment distribution of cascade reservoirs and river regime and an in-depth research needs to be conducted.Through analyzing the measured results of bed load of Sanduizi Hydrometric Station in the lower reach of Jinsha River during of 2008 and 2009,the relations of annual distribution,lateral distribution,gradation,transport of bed load with the water level,flow rate and flow velocity are studied.The result shows that,in Sanduizi reach,sand bed load exists in the whole year and its transport mainly concentrates in flood season especially from July to September;the strong transport area was 170 to 200 m away from the river side.
出处
《人民长江》
北大核心
2011年第21期63-66,共4页
Yangtze River
关键词
沙质推移质
粒径
输沙量
三堆子
金沙江
水文站
sand bed load
particle size
sediment discharge
Sanduizi
Jinsha River
hydrometric station
