摘要
利用坝地钻探取样资料,对黄河中游多沙粗沙区坝地淤积泥沙粒径的空间变化进行了分析,结果表明:淤地坝对泥沙具有分选作用,坝前泥沙粒径小于坝尾泥沙粒径;泥沙颗粒越粗,这种分选作用越明显。从而认为,在粗泥沙产沙区淤地坝能够起到一定的淤粗排细作用。
The paper analyzes the temporal variation of sediment grain size of dammed land of silt-laden and coarse sand region in the middle Yellow River by using boring sampling data of dammed land.The outcomes show that the warping dam has grading function of sediment and the sediment grain size before dam is smaller than that of dam tail and;the coarser the sediment grain size,the clearer the grading function will be.Thus,it considers that warping dams situated in coarse sand producing region can have a certain function of silting coarse sand and discharging the fine.
出处
《人民黄河》
CAS
北大核心
2007年第2期64-65,共2页
Yellow River
基金
黄河水利委员会治黄专项[黄规计(2004)197号]
关键词
泥沙粒径
分选作用
淤地坝
多沙粗沙区
黄河中游
sediment grain size,warping dam,silt-laden and coarse sand region,the middle Yellow River
