Geomechanics and Engineering

  • 제15권4호
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  • Pages.947-955
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  • 2018
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Three-dimensional simplified slope stability analysis by hybrid-type penalty method

  • 투고 : 2017.05.17
  • 심사 : 2018.01.01
  • 발행 : 2018.07.20
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, we propose a three-dimensional simplified slope stability analysis using a hybrid-type penalty method (HPM). In this method, a solid element obtained by the HPM is applied to a column that divides the slope into a lattice. Therefore, it can obtain a safety factor in the same way as simplified methods on the slip surface. Furthermore, it can obtain results (displacement and strain) that cannot be obtained by conventional limit equilibrium methods such as the Hovland method. The continuity condition of displacement between adjacent columns and between elements for each depth is considered to incorporate a penalty function and the relative displacement. For a slip surface between the bottom surface and the boundary condition to express the slip of slope, we introduce a penalty function based on the Mohr-Coulomb failure criterion. To compute the state of the slip surface, an r-min method is used in the load incremental method. Using the result of the simple three-dimensional slope stability analysis, we obtain a safety factor that is the same as the conventional method. Furthermore, the movement of the slope was calculated quantitatively and qualitatively because the displacement and strain of each element are obtained.

키워드

참고문헌

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피인용 문헌

  1. The expanded LE Morgenstern-Price method for slope stability analysis based on a force-displacement coupled mode vol.23, pp.4, 2020, https://doi.org/10.12989/gae.2020.23.4.313
  2. Discontinuous rock slope stability analysis by limit equilibrium approaches - a review vol.14, pp.12, 2018, https://doi.org/10.1080/17538947.2021.1988163