[1]YANG Yong-hong,WANG Cheng-hua,LIU Shu-zhen,et al.Experimental Research on Improving Shear Strength of Soil in Surface Landslide by Root System of Different Vegetation Type[J].Research of Soil and Water Conservation,2007,14(02):233-235.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
14
Number of periods:
2007年02期
Page number:
233-235
Column:
Public date:
1900-01-01
- Title:
-
Experimental Research on Improving Shear Strength of Soil in Surface Landslide by Root System of Different Vegetation Type
- Author(s):
-
YANG Yong-hong1, WANG Cheng-hua2, LIU Shu-zhen2, XIAO Qing-hua1
-
1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Conservancy, Chengdu 610041, China
-
- Keywords:
-
root system; unsaturated soil; vegetation; shear strength
- CLC:
-
TU432;P642.22
- DOI:
-
-
- Abstract:
-
It is analyzed that the impacts of vegetation type on shear strength of unsaturated soil through direct shearing tests for unsaturated soil of different depth and various vegetation types which consist of bare soil, tanglehead grassplot, switch sorrel shrubbery and eucalyptus holt under natural moisture contents. The results show that the cohesion of unsaturated soil changes greatly, and the friction angle changes a little with soil moisture content. It is also shown that the deeper of soil layer, the smaller of the extent of shearing strength improved.