摘要
按列维输沙率公式估算 ,北江横石站推移质年产沙量 4 6万t,飞来峡水库运行将会导致部分推移质泥沙淤积在库内 ,但总量不大。根据估算推移质沙量来看 ,近十多年来北江下游河道采沙量偏多 ,河道采沙要参考河流产沙量有计划地开采。
According to the formula for transport rate of bed load, the estimating amount of annual bed load at Hengshi hydrologic station in Beijiang river is about 460 thousand tons. The operation of Feilaixia reservoir bring some sedimentation along the backwater, but not serious. Comparing with the incoming bed load, it is excessive to excavate sand from downstream bed of Beijiang river.Therefore it is necessary to make a guideline for sand excavating with consideration of the amount of incoming bed load.
出处
《泥沙研究》
CSCD
北大核心
2004年第2期72-75,共4页
Journal of Sediment Research
关键词
水利枢纽
河道演变
水库运行
推移质沙量
the Beijiang river
bed load
reservoir operation
riverbed evolution
