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Limit Load of Soil-Root Composites

Yang Pu1, Xiang Zhihai1, Hu Xiasong2, Li Guorong2, Zhu Haili2, Mao XiaoqinCen2, Zhangzhi1,3

Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P. R. China
Department of Geological Engineering, Qinghai University, Xining 810016, P. R. China
Corresponding author. Tel.: +86-10-62784015; E-mail: demczz@mail.tsinghua.edu.cn

Computers, Materials & Continua 2009, 10(2), 117-138. https://doi.org/10.3970/cmc.2009.010.117

Abstract

This paper studies the influence of root reinforcement on shallow soil protection by using Finite Element (FE) method. Taking the root-soil composite as a periodic material, the homogenization method is used to construct a Representative Volume Element (RVE) that consists of roots and soil. This RVE is discretized by a two-dimensional (2-D) FE mesh, while special formulation is established so that this model is capable of describing three-dimensional (3-D) deformations when the strain is invariant along the fiber axis. The important effect of debonding on the interface between the fiber and the matrix is also considered by using a special interface element. To verify the validity of the proposed computational model, triaxial tests were conducted, where the root-soil composite was subjected to axial and lateral pressures. Good agreement of limit loads has been achieved between the numerical and the experimental results.

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APA Style
Pu, Y., Zhihai, X., Xiasong, H., Guorong, L., Haili, Z. et al. (2009). Limit load of soil-root composites. Computers, Materials & Continua, 10(2), 117-138. https://doi.org/10.3970/cmc.2009.010.117
Vancouver Style
Pu Y, Zhihai X, Xiasong H, Guorong L, Haili Z, XiaoqinCen M, et al. Limit load of soil-root composites. Comput Mater Contin. 2009;10(2):117-138 https://doi.org/10.3970/cmc.2009.010.117
IEEE Style
Y. Pu et al., "Limit Load of Soil-Root Composites," Comput. Mater. Contin., vol. 10, no. 2, pp. 117-138. 2009. https://doi.org/10.3970/cmc.2009.010.117



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