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http://dx.doi.org/10.7747/JFS.2014.30.1.113

Analysis on Soil Reinforcement by Lespedeza cyrtobotrya Roots for Slope Stability  

Hwang, Jin-Sung (Forest Practice Research Center, Korea Forest Research Institute)
Ji, Byoung-Yun (Forest Practice Research Center, Korea Forest Research Institute)
Oh, Jae-Heun (Forest Practice Research Center, Korea Forest Research Institute)
Cha, Du-Song (Department of Forest Management, College of Forest & Environmental Sciences, Kangwon National University)
Publication Information
Journal of Forest and Environmental Science / v.30, no.1, 2014 , pp. 113-119 More about this Journal
Abstract
To examine the soil reinforcement by the shrub with shallow root systems for slope stability, we developed insitu apparatus for direct shear test and conducted the insitu field tests for Lespedeza cyrtobotrya, a representative revegetation species for artificial hillslopes. The insitu field tests were conducted for two different soil conditions (the rooted soils and non-rooted soils) and we then compared the experimental values with those calculated from the Wu model. The results showed that the soil reinforcement derived from the insitu field tests ranged from 0.01525 to 0.1438 $kgf/cm^2$ while the one calculated from the Wu model ranged from 0.1952 to 0.2696 $kgf/cm^2$. Our finding suggests more field tests are needed to collect the related parameters in the model application thereby predicting the reliable soil reinforcement by the shrub root systems.
Keywords
direct shear test; slope stability; soil reinforcement; tree root; tensile strength;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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