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Study on the Difference of Stability Calculation Between Numerical Simulation Analysis and Limit Equilibrium Methods--Take Huangmuya Landslide as an Example

Received: 23 April 2021     Accepted: 8 June 2021     Published: 21 June 2021
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Abstract

Numerical simulation analysis and limit equilibrium methods are usually used in landslide stability analysis. In order to study the differences of calculation theory and results, this paper takes Huangmuya landslide as a case study. The field geological survey and exploration are used to determine the form and property of the landslide. The deformation characteristics and stability state are comprehensive analyzed based on the information of macroscopic inspection and professional monitoring data. It is considered that the potential slip zone of the landslide has not obviously deteriorated, and the induced formation mechanism of the landslide mainly comes from the process and deformation of the upper slip mass. Through the analysis, FLAC3D is applied to simulate the stability of Huangmuya landslideis. The numerical simulation results show that the displacement of the slope will further increase, mainly concentrated in the middle and leading edge of the slip mass. Besides, stability coefficients are calculated by five limit equilibrium methods. The relationship of stability coefficients is as follows: transfer coefficient method > Low method > US Army Corps of Engineers method > M-P method > Janbu method. Based on the numerical simulation results, it is recommended to give priority to the US Army Corps of Engineers method, Low method or M-P method as the stability calculation method because the deviation amount is all within±2%.

Published in American Journal of Mechanics and Applications (Volume 9, Issue 2)
DOI 10.11648/j.ajma.20210902.11
Page(s) 12-17
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), 2021. Published by Science Publishing Group

Keywords

Huangmuya Landslide, Stability Calculation, Numerical Simulation Analysis, Limit Equilibrium Method

References
[1] Xia Yuanyou, Li Mei. Evaluation method research of slope stability and its developing trend [J]. Chinese Journal of Rock Mechanics and Engineering. 2002, 21 (7): 1087-1091.
[2] Fang Yushu. The lowest solution of slice method for slope stability analysis [J]. Chinese Journal of Geotechnical Engineering. 2008, 30 (3): 331-335.
[3] Wu Liudong, Su Aijun, Huo Xin, Qi Zhenyu. Comparison and analysis of slope safety factor by different limit equilibrium methods [J]. Water Resources and Power. 2013, 31 (12): 151-154.
[4] Chen Z Y, Morgenstern N R. Extensions to the generalized method of slices for stability analysis [J]. Canadian Geotechnical Journal. 1983, 20 (1): 104-119.
[5] Su Aijun, Zou Zongxing, Lu Zhichun, Wang Jinge. The inclination of the interslice resultant force in the limit equilibrium slope stability analysis [J]. Engineering Geology. 2018, 240: 140-148.
[6] Huang Runqiu, Xu Qiang. Application of explicit Lagrangian finite-difference method in rock slope engineering [J]. Chinese Journal of Rock Mechanics and Engineering. 1995, 14 (4): 346-354.
[7] Carol Matthewsa, Zeena Farooka, Peter Helm. Slope stability analysis-limit equilibrium or the finite element method [J]. Ground Engineering. 2014, 48 (5): 22-28.
[8] Xiong Zheng, Li Xianfu, Yand Liwei. Analysis of slope stability at reservoir bank with FLAC3D [J]. Journal of Wuhan Institute of technology. 2007, 29 (2): 27-30.
[9] Han Wandong, Gu Mingyu, Yang Xiaoyun, Qiao Yanwei, Wang Xingguo. Slope stability based on FLAC3D numerical simulation [J]. Journal of Liaoning Technical University (Natural Science). 2013, 32 (9): 1204-1208.
[10] Zhou Jian, Deng Maolin, Li Zhuojun, Zhang Fuling, Lin Yan. Analysis on the Formation and Apparent dip Lateral Sliding Mechanism of Shanshucao Landslide in the Three Gorges Reservoir Area [J]. Journal of Disaster Prevention and Mitigation Engineering. 2020, 40 (6): 860-866.
[11] Ministry of Land and Resources of the People's Republic of China. Monitoring code of rockfall, landside and debris flow: DZ/T 0221-2006 [S]. Beijing: Standards Press of China, 2006.
[12] Ministry of Housing and Urban-Rural Development of the People's Republic of China. Technical code for building slope engineering: GB 50330-2013 [S]. Beijing: China Architecture & Building Press, 2013.
[13] Yu Zhongxiang, Ren Weizhong, Fu Guijun, Zhang Jipeng, Shen Kai. Failure Forms and Stability Analysis of Layered Rock Slope Based on FLAC3D [J]. Journal of Shaoxing University. 2020,40 (10): 20-28.
[14] Lu Wenbin, Geng Haishen, Wei Sailajia. Stability of Zhangjiawan Landslide Based on Limit Equilibrium Method and Midas/GTS [J]. Science Technology and Engineering. 2021, 21 (11): 4369-4378.
[15] Aijun Su. Principle and method of landslide stability evaluation -- improvement of slices method [M]. Wuhan: China University of Geosciences Press, 2008.
Cite This Article
  • APA Style

    Zhao Changjun, Wu Liudong, Jiang Nan, Xu Minghui. (2021). Study on the Difference of Stability Calculation Between Numerical Simulation Analysis and Limit Equilibrium Methods--Take Huangmuya Landslide as an Example. American Journal of Mechanics and Applications, 9(2), 12-17. https://doi.org/10.11648/j.ajma.20210902.11

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    ACS Style

    Zhao Changjun; Wu Liudong; Jiang Nan; Xu Minghui. Study on the Difference of Stability Calculation Between Numerical Simulation Analysis and Limit Equilibrium Methods--Take Huangmuya Landslide as an Example. Am. J. Mech. Appl. 2021, 9(2), 12-17. doi: 10.11648/j.ajma.20210902.11

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    AMA Style

    Zhao Changjun, Wu Liudong, Jiang Nan, Xu Minghui. Study on the Difference of Stability Calculation Between Numerical Simulation Analysis and Limit Equilibrium Methods--Take Huangmuya Landslide as an Example. Am J Mech Appl. 2021;9(2):12-17. doi: 10.11648/j.ajma.20210902.11

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  • @article{10.11648/j.ajma.20210902.11,
      author = {Zhao Changjun and Wu Liudong and Jiang Nan and Xu Minghui},
      title = {Study on the Difference of Stability Calculation Between Numerical Simulation Analysis and Limit Equilibrium Methods--Take Huangmuya Landslide as an Example},
      journal = {American Journal of Mechanics and Applications},
      volume = {9},
      number = {2},
      pages = {12-17},
      doi = {10.11648/j.ajma.20210902.11},
      url = {https://doi.org/10.11648/j.ajma.20210902.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajma.20210902.11},
      abstract = {Numerical simulation analysis and limit equilibrium methods are usually used in landslide stability analysis. In order to study the differences of calculation theory and results, this paper takes Huangmuya landslide as a case study. The field geological survey and exploration are used to determine the form and property of the landslide. The deformation characteristics and stability state are comprehensive analyzed based on the information of macroscopic inspection and professional monitoring data. It is considered that the potential slip zone of the landslide has not obviously deteriorated, and the induced formation mechanism of the landslide mainly comes from the process and deformation of the upper slip mass. Through the analysis, FLAC3D is applied to simulate the stability of Huangmuya landslideis. The numerical simulation results show that the displacement of the slope will further increase, mainly concentrated in the middle and leading edge of the slip mass. Besides, stability coefficients are calculated by five limit equilibrium methods. The relationship of stability coefficients is as follows: transfer coefficient method > Low method > US Army Corps of Engineers method > M-P method > Janbu method. Based on the numerical simulation results, it is recommended to give priority to the US Army Corps of Engineers method, Low method or M-P method as the stability calculation method because the deviation amount is all within±2%.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Study on the Difference of Stability Calculation Between Numerical Simulation Analysis and Limit Equilibrium Methods--Take Huangmuya Landslide as an Example
    AU  - Zhao Changjun
    AU  - Wu Liudong
    AU  - Jiang Nan
    AU  - Xu Minghui
    Y1  - 2021/06/21
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ajma.20210902.11
    DO  - 10.11648/j.ajma.20210902.11
    T2  - American Journal of Mechanics and Applications
    JF  - American Journal of Mechanics and Applications
    JO  - American Journal of Mechanics and Applications
    SP  - 12
    EP  - 17
    PB  - Science Publishing Group
    SN  - 2376-6131
    UR  - https://doi.org/10.11648/j.ajma.20210902.11
    AB  - Numerical simulation analysis and limit equilibrium methods are usually used in landslide stability analysis. In order to study the differences of calculation theory and results, this paper takes Huangmuya landslide as a case study. The field geological survey and exploration are used to determine the form and property of the landslide. The deformation characteristics and stability state are comprehensive analyzed based on the information of macroscopic inspection and professional monitoring data. It is considered that the potential slip zone of the landslide has not obviously deteriorated, and the induced formation mechanism of the landslide mainly comes from the process and deformation of the upper slip mass. Through the analysis, FLAC3D is applied to simulate the stability of Huangmuya landslideis. The numerical simulation results show that the displacement of the slope will further increase, mainly concentrated in the middle and leading edge of the slip mass. Besides, stability coefficients are calculated by five limit equilibrium methods. The relationship of stability coefficients is as follows: transfer coefficient method > Low method > US Army Corps of Engineers method > M-P method > Janbu method. Based on the numerical simulation results, it is recommended to give priority to the US Army Corps of Engineers method, Low method or M-P method as the stability calculation method because the deviation amount is all within±2%.
    VL  - 9
    IS  - 2
    ER  - 

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Author Information
  • Changjiang Institute of Survey, Planning, Design and Research, Wuhan, China

  • China Southwest Geotechnical Investigation & Design Institute Co., Ltd, Chengdu, China

  • China Southwest Geotechnical Investigation & Design Institute Co., Ltd, Chengdu, China

  • Changjiang Institute of Survey, Planning, Design and Research, Wuhan, China

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