Study on the Influence of Vegetation on Soil Shear Strength of Ecological Slope
[Purposes]A large number of bare slopes are produced in engineering construction,so it is in-evitable to carry out vegetation restoration on the slope,and explore the influence of vegetation on the me-chanical properties of the slope soil.The research results will provide reference for the evaluation of slope stability.[Methods]Direct shear test was carried out on the mixture of root and soil in different pro-portions in the study area.[Findings]The results showed that with the increase of water content,the co-hesiveness of soil showed a decreasing trend,the root system could obviously increase the cohesiveness of soil,and the internal friction Angle of soil also increased to a certain extent,and the increase range was smaller than the increase range of cohesiveness.[Conclusions]Vegetation can enhance the shear strength of soil,and ecological slope protection is of great significance for slope protection.