Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method

Mahendra Acharya; Asim Timalsina; Ujjan Paudel

doi:doi:10.11648/j.ajset.20230803.11

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Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method

Mahendra Acharya, Asim Timalsina, Ujjan Paudel

Published in American Journal of Science, Engineering and Technology (Volume 8, Issue 3)

Received: 20 May 2023 Accepted: 26 June 2023 Published: 11 July 2023

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Abstract

The stability of the slope is the crucial factor in geotechnical engineering, particularly when the slopes are composed of soils. The purpose of this research is to analyze the shear strength reduction of glacial till slope using phase 2 software. Where, conclusive analysis is based on two methods, Limit equilibrium and the Mohr-Colomb criterion Finite Element (FE) Shear Strength Reduction (SSR). The methodology embodied the major laboratory test results such as Atterberg limits, Direct Shear Strength test, unconfined compression strength. The experimental results were than used in phase 2 software, where 2D plane strain model of the slope was created. The impact of modifications in shear strength parameters on the factor of safety is then examined. The analysis showed that the glacial till slope experienced a significant reduction in strength, with the Limit Equilibrium method FOS ranging from 0.94 to 1.54, while Mohr’s criterion Finite Elements Shear Strength Reduction ranged from 0.31 to 0.61. The analysis results, in conclusion, the shear strength reduction of slope is reliable and efficient for determining the stability of slopes. The use of both aforementioned methods provides accurate and consistent results that can aid in making effective engineering decisions.

Published in	American Journal of Science, Engineering and Technology (Volume 8, Issue 3)
DOI	10.11648/j.ajset.20230803.11
Page(s)	125-132
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Limit Equilibrium Method, Strength Reduction Method, Stability Analysis, Factor of Safety, Slope

References

[1]	Naeij, Morteza & ghasemi, Hussein & Ghafarian, S. Danial & Javanmardi, Yousef. (2021). Explicit finite element analysis of slope stability by strength reduction. Geomechanics and Engineering. 26. 10.12989/gae.2021.26.2.133.
[2]	Dawson, Ethan & Motamed, Farid & Nesarajah, Saddanathapillai & Roth, Wolfgang. (2000). Geotechnical Stability Analysis by Strength Reduction. 289. 99-113. 10.1061/40512(289)8.
[3]	Shiguo Xiao, Wei Dong Guo, and Jinxiu Zeng. 2017. Factor of safety of slope stability from deformation energy. Canadian Geotechnical Journal. 55 (2): 296-302.
[4]	Zienkiewicz, O. & Humpheson, Chris & Lewis, Roland. (1975). Associated and non-associated visco-plasticity and plasticity in soil mechanics. Geotechnique. 25. 671-689. 10.1680/geot.1975.25.4.671. Balmer G. 1952. A general analytical solution for Mohr’s envelope. American Society for Testing and Materials, vol. 52, pp. 1260-1271.
[5]	Smith, Ian & Griffiths, D. & Margetts, Lee. (2014). Programming the Finite Element Method. 5. Tu, Yiliang & Zhong, Zuliang & Luo, Weikun & Liu, Xinrong & Wang, Sui. (2016). A modified shear strength reduction finite element method for soil slope under wetting-drying cycles. Geomechanics and Engineering. 11. 739-756. 10.12989/gae.2016.11.6.739.
[6]	Kaveh, A. & Hamze-Ziabari, S. M. & Bakhshpoori, Taha. (2018). Soft computing-based slope stability assessment: A comparative study. Geomechanics and Engineering. 14. 257-269. 10.12989/gae.2018.14.3.257.
[7]	Matsui, T., & San, K.-C. (1992). Finite Element Slope Stability Analysis by Shear Strength Reduction Technique. Soils and Foundations, 32, 59-70.
[8]	Balmer G. 1952. A general analytical solution for Mohr’s envelope. American Society for Testing and Materials, vol. 52, pp. 1260-1271.
[9]	Hammah, R. E., J. H. Curran, T. E. Yacoub, and B. Corkum. 2004. Stability analysis of rock slopes using the Finite Element Method. In Proceedings of the ISRM Regional Symposium EUROCK 2004 and the 53rd Geomechanics Colloquy, Salzburg, Austria.
[10]	Rocscience Inc. 2005. Phase2 v6.0 – a two-dimensional finite element analysis program. Rocscience Inc. 2003. Slide v5.0 – a slope stability program based on limit-equilibrium analysis.
[11]	D. J. Robert, A Modified Mohr-Coulomb Model to Simulate the Behavior of Pipelines in Unsaturated Soils, Computers and Geotechnics, Volume 91, 2017, Pages 146-160.

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APA Style

Mahendra Acharya, Asim Timalsina, Ujjan Paudel. (2023). Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method. American Journal of Science, Engineering and Technology, 8(3), 125-132. https://doi.org/10.11648/j.ajset.20230803.11

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ACS Style

Mahendra Acharya; Asim Timalsina; Ujjan Paudel. Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method. Am. J. Sci. Eng. Technol. 2023, 8(3), 125-132. doi: 10.11648/j.ajset.20230803.11

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AMA Style

Mahendra Acharya, Asim Timalsina, Ujjan Paudel. Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method. Am J Sci Eng Technol. 2023;8(3):125-132. doi: 10.11648/j.ajset.20230803.11

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@article{10.11648/j.ajset.20230803.11,
  author = {Mahendra Acharya and Asim Timalsina and Ujjan Paudel},
  title = {Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method},
  journal = {American Journal of Science, Engineering and Technology},
  volume = {8},
  number = {3},
  pages = {125-132},
  doi = {10.11648/j.ajset.20230803.11},
  url = {https://doi.org/10.11648/j.ajset.20230803.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajset.20230803.11},
  abstract = {The stability of the slope is the crucial factor in geotechnical engineering, particularly when the slopes are composed of soils. The purpose of this research is to analyze the shear strength reduction of glacial till slope using phase 2 software. Where, conclusive analysis is based on two methods, Limit equilibrium and the Mohr-Colomb criterion Finite Element (FE) Shear Strength Reduction (SSR). The methodology embodied the major laboratory test results such as Atterberg limits, Direct Shear Strength test, unconfined compression strength. The experimental results were than used in phase 2 software, where 2D plane strain model of the slope was created. The impact of modifications in shear strength parameters on the factor of safety is then examined. The analysis showed that the glacial till slope experienced a significant reduction in strength, with the Limit Equilibrium method FOS ranging from 0.94 to 1.54, while Mohr’s criterion Finite Elements Shear Strength Reduction ranged from 0.31 to 0.61. The analysis results, in conclusion, the shear strength reduction of slope is reliable and efficient for determining the stability of slopes. The use of both aforementioned methods provides accurate and consistent results that can aid in making effective engineering decisions.},
 year = {2023}
}

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TY  - JOUR
T1  - Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method
AU  - Mahendra Acharya
AU  - Asim Timalsina
AU  - Ujjan Paudel
Y1  - 2023/07/11
PY  - 2023
N1  - https://doi.org/10.11648/j.ajset.20230803.11
DO  - 10.11648/j.ajset.20230803.11
T2  - American Journal of Science, Engineering and Technology
JF  - American Journal of Science, Engineering and Technology
JO  - American Journal of Science, Engineering and Technology
SP  - 125
EP  - 132
PB  - Science Publishing Group
SN  - 2578-8353
UR  - https://doi.org/10.11648/j.ajset.20230803.11
AB  - The stability of the slope is the crucial factor in geotechnical engineering, particularly when the slopes are composed of soils. The purpose of this research is to analyze the shear strength reduction of glacial till slope using phase 2 software. Where, conclusive analysis is based on two methods, Limit equilibrium and the Mohr-Colomb criterion Finite Element (FE) Shear Strength Reduction (SSR). The methodology embodied the major laboratory test results such as Atterberg limits, Direct Shear Strength test, unconfined compression strength. The experimental results were than used in phase 2 software, where 2D plane strain model of the slope was created. The impact of modifications in shear strength parameters on the factor of safety is then examined. The analysis showed that the glacial till slope experienced a significant reduction in strength, with the Limit Equilibrium method FOS ranging from 0.94 to 1.54, while Mohr’s criterion Finite Elements Shear Strength Reduction ranged from 0.31 to 0.61. The analysis results, in conclusion, the shear strength reduction of slope is reliable and efficient for determining the stability of slopes. The use of both aforementioned methods provides accurate and consistent results that can aid in making effective engineering decisions.
VL  - 8
IS  - 3
ER  -

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Author Information

Mahendra Acharya

Central Department of Geology, Tribhuvan University, Kathmandu, Nepal
Asim Timalsina

Department of Geology, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal
Ujjan Paudel

Kantipur Engineering College, Tribhuvan University, Kathmandu, Nepal

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Plain Text BibTeX RIS

APA Style

Mahendra Acharya, Asim Timalsina, Ujjan Paudel. (2023). Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method. American Journal of Science, Engineering and Technology, 8(3), 125-132. https://doi.org/10.11648/j.ajset.20230803.11

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ACS Style

Mahendra Acharya; Asim Timalsina; Ujjan Paudel. Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method. Am. J. Sci. Eng. Technol. 2023, 8(3), 125-132. doi: 10.11648/j.ajset.20230803.11

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AMA Style

Mahendra Acharya, Asim Timalsina, Ujjan Paudel. Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method. Am J Sci Eng Technol. 2023;8(3):125-132. doi: 10.11648/j.ajset.20230803.11

Copy | Download

@article{10.11648/j.ajset.20230803.11,
  author = {Mahendra Acharya and Asim Timalsina and Ujjan Paudel},
  title = {Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method},
  journal = {American Journal of Science, Engineering and Technology},
  volume = {8},
  number = {3},
  pages = {125-132},
  doi = {10.11648/j.ajset.20230803.11},
  url = {https://doi.org/10.11648/j.ajset.20230803.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajset.20230803.11},
  abstract = {The stability of the slope is the crucial factor in geotechnical engineering, particularly when the slopes are composed of soils. The purpose of this research is to analyze the shear strength reduction of glacial till slope using phase 2 software. Where, conclusive analysis is based on two methods, Limit equilibrium and the Mohr-Colomb criterion Finite Element (FE) Shear Strength Reduction (SSR). The methodology embodied the major laboratory test results such as Atterberg limits, Direct Shear Strength test, unconfined compression strength. The experimental results were than used in phase 2 software, where 2D plane strain model of the slope was created. The impact of modifications in shear strength parameters on the factor of safety is then examined. The analysis showed that the glacial till slope experienced a significant reduction in strength, with the Limit Equilibrium method FOS ranging from 0.94 to 1.54, while Mohr’s criterion Finite Elements Shear Strength Reduction ranged from 0.31 to 0.61. The analysis results, in conclusion, the shear strength reduction of slope is reliable and efficient for determining the stability of slopes. The use of both aforementioned methods provides accurate and consistent results that can aid in making effective engineering decisions.},
 year = {2023}
}

Copy | Download

TY  - JOUR
T1  - Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method
AU  - Mahendra Acharya
AU  - Asim Timalsina
AU  - Ujjan Paudel
Y1  - 2023/07/11
PY  - 2023
N1  - https://doi.org/10.11648/j.ajset.20230803.11
DO  - 10.11648/j.ajset.20230803.11
T2  - American Journal of Science, Engineering and Technology
JF  - American Journal of Science, Engineering and Technology
JO  - American Journal of Science, Engineering and Technology
SP  - 125
EP  - 132
PB  - Science Publishing Group
SN  - 2578-8353
UR  - https://doi.org/10.11648/j.ajset.20230803.11
AB  - The stability of the slope is the crucial factor in geotechnical engineering, particularly when the slopes are composed of soils. The purpose of this research is to analyze the shear strength reduction of glacial till slope using phase 2 software. Where, conclusive analysis is based on two methods, Limit equilibrium and the Mohr-Colomb criterion Finite Element (FE) Shear Strength Reduction (SSR). The methodology embodied the major laboratory test results such as Atterberg limits, Direct Shear Strength test, unconfined compression strength. The experimental results were than used in phase 2 software, where 2D plane strain model of the slope was created. The impact of modifications in shear strength parameters on the factor of safety is then examined. The analysis showed that the glacial till slope experienced a significant reduction in strength, with the Limit Equilibrium method FOS ranging from 0.94 to 1.54, while Mohr’s criterion Finite Elements Shear Strength Reduction ranged from 0.31 to 0.61. The analysis results, in conclusion, the shear strength reduction of slope is reliable and efficient for determining the stability of slopes. The use of both aforementioned methods provides accurate and consistent results that can aid in making effective engineering decisions.
VL  - 8
IS  - 3
ER  -

Copy | Download