Geomechanics and Engineering

  • 제5권4호
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  • Pages.313-329
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  • 2013
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
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Reinforcing effect of vetiver (Vetiveria zizanioides) root in geotechnical structures - experiments and analyses

  • Islam, Mohammad S. (Dept. of Civil Engineering, Bangladesh University of Engineering and Technology) ;
  • Shahin, Hossain M. (Dept. of Civil Engineering, Nagoya Institute of Technology)
  • 투고 : 2012.09.04
  • 심사 : 2013.03.29
  • 발행 : 2013.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

Vetiver grass (Vetiveria zizanioides) is being effectively used in many countries to protect embankment and slopes for their characteristics of having long and strong roots. In this paper, in-situ shear tests of the ground with the vetiver roots have been conducted to investigate the stabilization properties corresponding to the embankment slopes. Numerical analyses have also been performed with the finite element method using elastoplastic subloading $t_{ij}$ model, which can simulate typical soil behavior. It is revealed from field tests that the shear strength of vetiver rooted soil matrix is higher than that of the unreinforced soil. The reinforced soil with vetiver root also shows ductile behavior. The numerical analyses capture well the results of the in-situ shear tests. Effectiveness of vetiver root in geotechnical structures-strip foundation and embankment slope has been evaluated by finite element analyses. It is found that the reinforcement with vetiver root enhances the bearing capacities of the grounds and stabilizes the embankment slopes.

키워드

참고문헌

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피인용 문헌

  1. Reduction of Landslide Risk and Water-Logging Using Vegetation vol.65, pp.2267-1242, 2018, https://doi.org/10.1051/e3sconf/20186506003
  2. The Investigation and 3D Numerical Simulation of Herb Roots in Reinforcing Soil and Stabilizing Slope vol.22, pp.12, 2018, https://doi.org/10.1007/s12205-018-1407-6
  3. Modeling Hydromechanical Reinforcement of Vegetation to Improve the Stability of a Shallow Slope vol.57, pp.5, 2020, https://doi.org/10.1007/s11204-020-09687-8