当前位置: 首页 > 文章 > 底坡对植物“柔性坝”固沙能力的影响分析 新疆农业大学学报 2009,32 (2) 67-71
Position: Home > Articles > Effects of Base Slope on Sand-binding Capacity of Vegetation "Flexible Dam" Journal of Xinjiang Agricultural University 2009,32 (2) 67-71

底坡对植物“柔性坝”固沙能力的影响分析

作  者:
刘锋;邱秀云;周著
单  位:
新疆农业大学水利与土木工程学院
关键词:
植物柔性坝;浑水试验;拦沙机理
摘  要:
通过室内水槽模型试验,研究了植物"柔性坝"在浑水水流流态下的拦沙机理。试验分别在1/150,1/100,1/50底坡条件下对应5.09,9.08,13.08 L/s流量时进行观测。对植树坝前后单颗粒泥沙运动速度的变化进行了观察,并对植物坝前与坝内的泥沙淤积形态进行了分析。由试验得出,底坡越大,植物坝上游泥沙运动速度的衰减率就越小,泥沙越早达到输沙平衡,植物坝的拦沙效果也越差。
译  名:
Effects of Base Slope on Sand-binding Capacity of Vegetation "Flexible Dam"
作  者:
LIU Feng1,2,QIU Xiu-yun2,ZHOU Zhu2 (1.Development and Planing Office,Xinjiang Agricultural University,Urumqi 830052;2.College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China)
关键词:
vegetation "flexible dam";turbid water experiment;block sand mechanism
摘  要:
By the indoor flume model experiment,this paper analyzed the block sand mechanism of turbid water appearance of "Flexible Dam".The change of single grain sediment sport speed before and behind vegetation dam were observed and the appearance of sediment deposition before and in vegetation dam were analyzed.The results indicated that the greater the base slope is,the smaller the decay rate of sediment movement in upper reaches of vegetation dam is:The earlier the sediment equalibrium of sediment transport reaches,the poorer the effect of chek of vegetation dam is.

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