极细沙含量对输沙能力影响的试验研究

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英文篇名：Experimental study on the influence of extremely fine particle sediment concentration on the ability of sediment transport 作者：李晓梦 ; 尹飞翔 ; 刘明 ; 左卫广 英文作者：LI Xiao-meng;YIN Fei-xiang;LIU Ming;ZUO Wei-guang;Yellow River Engineering Consulting Co., Ltd.;Henan Engineering Research Center of Urban Water Resources and Environment;CCCC First Harbor Engineering Co., Ltd.;North China University of Water Resources and Electric Power; 关键词：极细颗粒泥沙 ; 中沙 ; 含沙量 ; 挟沙力 英文关键词：extremely fine particle sediment;;medium-coarse sediment;;sediment concentration;;sediment-laden capacity 中文刊名：中国港湾建设 英文刊名：China Harbour Engineering 机构：黄河勘测规划设计研究院有限公司;河南省水资源环境工程技术研究中心;中交第一航务工程局有限公司;华北水利水电大学水利学院; 出版日期：2019-10-25 出版单位：中国港湾建设 年：2019 期：10 基金：河南省高等学校重点科研项目(18B570005);; 水利部珠江河口动力学及伴生过程调控重点实验室开放研究基金资助项目([2017] KJ01) 语种：中文; 页：39-43 页数：5 CN：12-1310/U ISSN：2095-7874 分类号：TV143

摘要

通过物理模型试验研究了极细颗粒泥沙对浑水水流输沙能力的影响。结果表明,在输沙平衡的浑水水流中加入极细沙,可以有效地提高水流的输沙能力。但是随着流量的增加,单位极细沙含量提高的浑水输沙能力是递减的。最后,比较了实验值与各挟沙力公式计算结果,并对极细沙提高水流输沙能力进行了解释。
        The influence of extremely fine particle sediment on sediment transport capacity of muddy water was studied by physical model test. The results show that sediment transport capacity in the muddy water flow with equilibrium of sediment transport can be effectively improved by adding extremely fine particle sediment. However, the capacity of muddy water to be increased by extremely fine particle sediment concentration is decreasing with the increase of flow. At last, the experimental values are compared with the calculation results of sediment-laden capacity formula, and the explanation for the improvement of sediment transport capacity by extremely fine particle sediment is given.

引文

[1]钟德钰，王士强，王光谦.细颗粒对粗颗粒床沙质输沙率影响的初步研究[J].水科学进展，2001,12(1):1-6.ZHONG De-yu, WANG Shi-qiang, WANG Guang-qian. Effect of fine material on transport of bed material load in hyperconcentrated flow[J]. Advances in Water Science, 2001, 12(1):1-6.
    [2] CHEN F, LI Y T. Analysis of the characters of erosion and deposition downstream from the reservoir[J]. Advances in Water Resources and Hydraulic Engineering, 2009(1-6):797-802.
    [3]郭小虎，李义天，渠庚，等.三峡工程蓄水后长江中游泥沙输移规律分析[J].泥沙研究，2014,10(5):11-17.GUO Xiao-hu, LI Yi-tian, QU Geng, et al. Analysis of sediment transport in middle Yangtze River after filling of the Three Gorges Reservoir[J]. Journal of Sediment Research, 2014, 10(5):11-17.
    [4]朱玲玲，葛华，张细兵，等．长江中游非均匀沙冲淤对来水来沙响应初步分析[J].水力发电学报，2012,30(6):215-221.ZHU Ling-ling, GE Hua, ZHANG Xi-bing, et al. Preliminary study on responses of non-uniform sediment scouring and silting in the middle Yangtze to its inflows[J]. Journal of Hydroelectric Engineering, 2012, 30(6):215-221.
    [5] FANG H, HE G, LIU J, et al. 3D numerical investigation of distorted scale in hydraulic physical model experiments[J]. Journal of Coastal Research, 2015(1):41-54.
    [6]刘峰.较细颗粒泥沙对较粗颗粒泥沙水流挟沙力的影响试验研究[J].广东水利水电，1999,3:20-21.LIU Feng. Experimental study on the influence of fine sediment on sediment carrying capacity of coarse sediment flow[J]. Guangdong Water Resources and Hydropower, 1999, 3:20-21.
    [7]李文杰，杨胜发，李斌强，等.基于原型沙的三峡库区细颗粒泥沙冲淤模型试验研究[J].泥沙研究，2017,6(3):17-23.LI Wen-jie, YANG Sheng-fa, LI Bin-qiang, et al. Physical model study on fine sediment transport in the Three Gorges Reservoir based on prototype sand[J]. Journal of Sediment Research, 2016, 6(3):17-23.
    [8]白静，方红卫，何国建，等.细颗粒泥沙净冲刷和输移的大涡模拟研究[J].力学学报，2017,49(1):65-74.BAI Jing, FANG Hong-wei, HE Guo-jian, et al. Numerical simulation of erosion and transport of fine sediments by large eddy simulation[J]. Chinese Journal of Theoretical and Applied Mechanics,2017, 49(1):65-74.
    [9]李学春，杨峰，李瑞.黄河内蒙古段不同粒径泥沙输移能力变化分析[J].人民黄河，2015,12(37):9-11, 15.LI Xue-chun, YANG Feng, LI Rui. Variation of sediment carrying capacity of various particle sizes in inner Mongolia Reach of the Yellow River[J]. Yellow River,2015, 12(37):9-11, 15.