Geomechanics and Engineering

  • 제21권5호
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  • Pages.401-411
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  • 2020
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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Numerical study on the optimal position of a pile for stabilization purpose of a slope

  • Boulfoul, Khalifa (Department of Civil Engineering, Faculty of Science, Mustapha Ben Boulaid, Batna2 University) ;
  • Hammoud, Farid (Department of Civil Engineering, Faculty of Science, Mustapha Ben Boulaid, Batna2 University) ;
  • Abbeche, Khelifa (Research Laboratory of Applied Hydraulics RLAHYA, Department of Civil Engineering, Faculty of Science, Mustapha Ben Boulaid, Batna2 University)
  • 투고 : 2019.07.10
  • 심사 : 2020.04.03
  • 발행 : 2020.06.10
⟨ 이전 논문 다음 논문 ⟩

초록

The paper describes the influence of pile reinforcement on the stability of the slope behaviour, and the exploitation of the results of in situ measurements will be conducted. In the second part, a 2D numerical modelling will be conducted by using the finite element code PLAXIS2D; in order to validate the proposed modelling approach by comparing the numerical results with the measurements results carried out on the slides studied; to study the effect of positioning of piles as a function of the shear parameters of the supported soil on the behaviour of the soil. For various shear strength of the soil a row of pile position is found, at which the piles offer the maximum contribution to slope stability. The position of piles is found to influence the safety factor in granular soil whereas it shows a slight influence on the safety factor in coherent soil. The results also indicate that the ideal position for such stabilizing piles is in the middle height of the slope. Comparison of results of present study with literature from publication: indicated that to reach the maximum stability of slope, the pile must be installed with Lx/L ratio (0.37 to 0.62) and the inclination must be between 30° to 60°. Even, after a certain length of the pile, the increasing will be useless. The application of the present approach to such a problem is located at the section of PK 210+480 to 210+800 of the Algerian East-West Highway.

키워드

과제정보

We would like to show our gratitude to laboratory the company COJAAL, and we thank two anonymous reviewers for their so-called insights for their comments on an earlier version of the manuscript.

참고문헌

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피인용 문헌

  1. Landslide susceptibility assessment using feature selection-based machine learning models vol.25, pp.1, 2020, https://doi.org/10.12989/gae.2021.25.1.001
  2. Three-dimensional assessment of cracked slopes with pore water pressure using limit analysis vol.80, pp.18, 2021, https://doi.org/10.1007/s12665-021-09932-9