Analysis on Soil Reinforcement by Lespedeza cyrtobotrya Roots for Slope Stability

Autor: Jin-Sung Hwang, Du-Song Cha, Byoung-Yun Ji, Jae-Heun Oh
Rok vydání: 2014
Předmět:
Zdroj: Journal of Forest and Environmental Science. 30:113-119
ISSN: 2288-9744
DOI: 10.7747/jfs.2014.30.1.113
Popis: 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/cm2 while the one calculated from the Wu model ranged from 0.1952 to 0.2696 kgf/cm2 . 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.
Databáze: OpenAIRE