泥沙研究2017，Vol.42Issue(3)：74-80,7.DOI:10.16239/j.cnki.0468-155x.2017.03.013
沙棘柔性坝拦沙效应的试验研究
Experimental study on sediment retention effect by the seabuckthorn flexible dam
摘要
Abstract
A field experiment on the sediment retention by the seabuckthorn flexible dam (SFD) was conducted in the field test base.Based on the experimental data,the impact of the SFD on the longitudinal sediment concentration and the particle size distribution of suspended sediment in the both inlet and outlet were analyzed.Resistance characteristics of SFD were discussed.Results showed that sediment retention effect by SFD on the various sediment-laden flows is obvious,and the best retention effect is caused by SFD on the prototype sand A,the next is on the prototype sand B,and the third is on the model sand.The optimal sediment retention effect is for the prototype sands of 250 ～ 1 000 μm,and the prototype sand concentration is positively related to the median particle size,as well as the model sand of 100 ～ 1 000 μm.Variation of sediment concentration along channel is mainly influenced by the resistance of seabuckthorn flexible dam.关键词
沙棘柔性坝/拦沙效应/含沙量/中值粒径/植物阻力Key words
seabuckthorn flexible dam/sediment retention effect/sediment concentration/median particle diameter/vegetation resistance分类
农业科技引用本文复制引用
杨方社,张鸿敏,李怀恩,韩琛..沙棘柔性坝拦沙效应的试验研究[J].泥沙研究,2017,42(3):74-80,7.基金项目
国家自然科学基金项目(51279163) （51279163）
西北旱区生态水利工程国家重点实验室培育基地项目(2016KFKT-4) （2016KFKT-4）
陕西省自然科学基金项目(2010JQ5003) （2010JQ5003）
