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[1]YANG Yong-hong,LIU Shu-zhen,WANG Cheng-hua.Impacts of Decrease of Soil Moisture Content on Stability of Shallow and Surface Landslide[J].Research of Soil and Water Conservation,2007,14(05):290-292.

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Impacts of Decrease of Soil Moisture Content on Stability of Shallow and Surface Landslide

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 14 Number of periods: 2007年05期 Page number: 290-292 Column: Public date: 1900-01-01

Title:: Impacts of Decrease of Soil Moisture Content on Stability of Shallow and Surface Landslide

Author(s):: YANG Yong-hong¹, LIU Shu-zhen², WANG Cheng-hua²; 1. National Special Laboratory of Geological Hazards and Geo-environment Protection, Chengdu University, Chengdu 610059;
2. Chengdu Mountain Hazards and Environment Institute of Chinese Academy of Sciences, Chengdu 610041, China

Keywords:: water content; unsaturated soil; shear strength; vegetation maintaining slope stability

CLC:: P642.22

DOI:: -

Abstract:: It is analyzed that the impacts of soil moisture content on stability of landslide through direct shearing tests for unsaturated soil of various vegetation types of bare land and eucalyptus land,different soil moisture contents and different-depth unsaturated soil.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 vegetation hydrological action can decrease soil moisture content,improve shear strength of unsaturated soil,which therefore provides a basis that vegetation can improve stability of landslide,prevention and control of soil and water loss on slopes.

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Last Update: 1900-01-01