植物根系对土质边坡稳定性的影响

A Summary of the Research on the Effect of Plant Roots on the Stability of Soil Slope

边坡稳定性防护是护坡防治的重点所在,因此立足于生态护坡的边坡稳定性护坡机理,对植物生态护坡的关键影响因素研究进展进行概述。土壤胀缩特性是土壤裂缝形态发育的重要影响因素之一,土壤胀缩潜力是护坡防治工作的重要参数。植物根系在土壤中的缠绕加筋作用,对土壤胀缩过程存在一定的阻滞作用,从而间接对护坡效应产生影响。而根系对于土壤胀缩特性的影响目前并未量化,且不同径级细根对土壤胀缩的影响效果至今尚无定论,因此该问题是根系对土质边坡稳定性影响的研究中需要进一步重点研究的内容。

Slope stability protection is the key point of slope protection and prevention.Based on the slope protection mechanism of ecological slope protection,this paper summarizes the research progress of the key influencing factors of plant ecological slope protection.The characteristics of soil expansion and contraction are one of the important factors influencing the development of soil crack morphology,and the potential of soil expansion and contraction is an important parameter for slope protection.The winding and stiffening effect of plant roots in the soil has a certain retarding effect on the process of soil expansion and contraction,which indirectly affects the slope protection effect.The effect of root system on soil swelling and shrinking properties is not quantified at present,and the effect of fine roots of different diameters on soil swelling and shrinking is the best.So far,there is no conclusive conclusion.Content.