Oedometer expansion and direct shear tests on vetiver root-reinforced expansive soil with different water contents
ZHOU Cheng1, 2, LU Yong-zhen1, HUANG Yue-hua1
1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China; 2. Key Lab of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam of the Ministry of Water Resources , Nanjing Hydraulic Research Institute, Nanjing 210024, China
Abstract：Oedometer expansion and direct shear tests are conducted on expansive soil with various initial water contents. Expansive force and shear strength of the samples with/without vetiver roots with different initial water contents are measured. The expensive force and shear strength with respect to reinforcement of vetiver roots are investigated. It is illustrated that vetiver root can increase shear strength and be used as flexible reinforcement to control expansive deformation and release expensive force of expansive soil with a degree of saturation under rainfall.
周成, 路永珍, 黄月华. 香根草加固不同含水率膨胀土的侧限膨胀和直剪试验[J]. 岩土工程学报, 2016, 38(z2): 30-35.
ZHOU Cheng, LU Yong-zhen, HUANG Yue-hua. Oedometer expansion and direct shear tests on vetiver root-reinforced expansive soil with different water contents. Chinese J. Geot. Eng., 2016, 38(z2): 30-35.
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