Position: Home > Articles > Shearing Resistance of Meandering Rive Riparian Zone in Yellow River Source Region
Journal of Anhui Agricultural Sciences
2015,43
(32)
44-45+125
黄河源区弯曲河流河岸带抗剪特性
作 者：
朱海丽
单 位：
青海大学地质工程系
关键词：
弯曲河流;根-土复合体;抗剪强度;黏聚力
摘 要：
[目的]为了定量化分析黄河源区弯曲河流河岸带根-土复合体的抗剪强度。[方法]在黄河源区河南县兰木措曲对2个河湾河岸边采取原位制样、室内试验分析的方式,测定根-土复合体抗剪强度。[结果]草甸型河岸带根-土复合体平均黏聚力可达18k Pa,其中河湾凹岸根-土复合体黏聚力比凸岸黏聚力平均约高10%,河湾两岸根-土复合体抗剪强度随着含水量的增大而减小。[结论]该研究为深入分析滨河植被对河岸的抗剪增强作用、减少河岸崩塌频率提供理论依据。
译 名：
Shearing Resistance of Meandering Rive Riparian Zone in Yellow River Source Region
作 者：
ZHU Hai-li;Department of Geological Engineering,Qinghai University;Qinghai Institute of Salt Lakes,Chinese Academy of Sciences;
关键词：
Meandering river;;Soil-root composite;;Shear strength;;Cohesion
摘 要：
[Objective] The research aimed to quantitatively analyze the shear strength of soil-root composites in meandering river bank of Yellow River Source Region. [Method] The shear strengths of soil-root composites were measured by in situ sample preparation and direct shear tests at two river bends riparian zone in Lanmucuoqu,which is located in Henan county,Yellow River Source Region. [Result]The average cohesion of soil-root composites reached 18 k Pa,and concave bank cohesion was higher than convex band cohesion by 10%. The shear strength of river bends decreased with the water content increasing. [Conclusion] The study can provide theoretical foundation for deep analysis of the riparian vegetation function on the enhancement of shear strength and the decrease of bank failure frequency.
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