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Embankment Stability Assessment in the Mfilou District (Brazzaville-Congo)

Received: 2 August 2022    Accepted: 23 August 2022    Published: 24 October 2022
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Abstract

Embankment failure is a common problem in Congo Republic. Almost each year in northern part of Brazzaville City embankments are facing problems such as rupturing or landslides. Among several reasons the main causes are considered because of geologically unstable materials, inadequate method of building, seepage and sliding. The current study aims to evaluate the effect of load and influence of topographic parameters such as the gradient and height of the slope on the road embankment stability with sandy landfill in the Mfilou district, Brazzaville City (Congo republic). The evaluation of the road embankment slope stability and the discovery of the implications of topographic parameters on the embankment safety management were carried out in a hilly area. A database was created based on the site inventory from field studies complemented by experimental and desk investigation. The soils properties and values of topographic parameters were incorporated to the embankment slope model as well. So, the slope modelling was carried out in different scenarios such as different slope heights, different slope angles with and without load effect. Then embankment stability was analysed with Slide 6.0 software finding slip surfaces from limit equilibrium methods. Results showed that despite the slope instability caused by the load effect, but the variation of topographic parameters affects the embankment stability as well.

Published in Earth Sciences (Volume 11, Issue 5)
DOI 10.11648/j.earth.20221105.18
Page(s) 316-326
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

Slope Angle, Slope Height, Limit Equilibrium, Embankment, Load, Brazzaville

References
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[3] D. P. Deng, L. Li, L. H. Zhao. 2011. A new method of sliding surface searching for general stability of slope based on Janbumethod. Rock and Soil Mechanics. 32: 891-898.
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[20] R. W. Whitman, P. J. Moore. 1963. Thoughts Concerning the Mechanics of Slope Stability Analysis. Proc. 2nd Pan-Am Conf. Soil Mech. & Found. Engineering Brazil. 1: 391-411.
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[22] H. Nugraha, D. Wacano, G. A. Dipayana, A. Cahyadi, B. W. Mutaqinc, A. Larasati. 2015. Geomorphometric characteristics of landslides in the Tinalah watershed, Menoreh Mountains, Yogyakarta, Indonesia. Procedia Environment Sciences. 28: 578-586.
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  • APA Style

    Kempena Adolphe, Watha Ndoudy Noël, Obami Ondon Harmel, Antonio Olimpio Gonçalves, Rafael Guardado Lacaba, et al. (2022). Embankment Stability Assessment in the Mfilou District (Brazzaville-Congo). Earth Sciences, 11(5), 316-326. https://doi.org/10.11648/j.earth.20221105.18

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    ACS Style

    Kempena Adolphe; Watha Ndoudy Noël; Obami Ondon Harmel; Antonio Olimpio Gonçalves; Rafael Guardado Lacaba, et al. Embankment Stability Assessment in the Mfilou District (Brazzaville-Congo). Earth Sci. 2022, 11(5), 316-326. doi: 10.11648/j.earth.20221105.18

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    AMA Style

    Kempena Adolphe, Watha Ndoudy Noël, Obami Ondon Harmel, Antonio Olimpio Gonçalves, Rafael Guardado Lacaba, et al. Embankment Stability Assessment in the Mfilou District (Brazzaville-Congo). Earth Sci. 2022;11(5):316-326. doi: 10.11648/j.earth.20221105.18

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  • @article{10.11648/j.earth.20221105.18,
      author = {Kempena Adolphe and Watha Ndoudy Noël and Obami Ondon Harmel and Antonio Olimpio Gonçalves and Rafael Guardado Lacaba and Boudzoumou Florent},
      title = {Embankment Stability Assessment in the Mfilou District (Brazzaville-Congo)},
      journal = {Earth Sciences},
      volume = {11},
      number = {5},
      pages = {316-326},
      doi = {10.11648/j.earth.20221105.18},
      url = {https://doi.org/10.11648/j.earth.20221105.18},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20221105.18},
      abstract = {Embankment failure is a common problem in Congo Republic. Almost each year in northern part of Brazzaville City embankments are facing problems such as rupturing or landslides. Among several reasons the main causes are considered because of geologically unstable materials, inadequate method of building, seepage and sliding. The current study aims to evaluate the effect of load and influence of topographic parameters such as the gradient and height of the slope on the road embankment stability with sandy landfill in the Mfilou district, Brazzaville City (Congo republic). The evaluation of the road embankment slope stability and the discovery of the implications of topographic parameters on the embankment safety management were carried out in a hilly area. A database was created based on the site inventory from field studies complemented by experimental and desk investigation. The soils properties and values of topographic parameters were incorporated to the embankment slope model as well. So, the slope modelling was carried out in different scenarios such as different slope heights, different slope angles with and without load effect. Then embankment stability was analysed with Slide 6.0 software finding slip surfaces from limit equilibrium methods. Results showed that despite the slope instability caused by the load effect, but the variation of topographic parameters affects the embankment stability as well.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Embankment Stability Assessment in the Mfilou District (Brazzaville-Congo)
    AU  - Kempena Adolphe
    AU  - Watha Ndoudy Noël
    AU  - Obami Ondon Harmel
    AU  - Antonio Olimpio Gonçalves
    AU  - Rafael Guardado Lacaba
    AU  - Boudzoumou Florent
    Y1  - 2022/10/24
    PY  - 2022
    N1  - https://doi.org/10.11648/j.earth.20221105.18
    DO  - 10.11648/j.earth.20221105.18
    T2  - Earth Sciences
    JF  - Earth Sciences
    JO  - Earth Sciences
    SP  - 316
    EP  - 326
    PB  - Science Publishing Group
    SN  - 2328-5982
    UR  - https://doi.org/10.11648/j.earth.20221105.18
    AB  - Embankment failure is a common problem in Congo Republic. Almost each year in northern part of Brazzaville City embankments are facing problems such as rupturing or landslides. Among several reasons the main causes are considered because of geologically unstable materials, inadequate method of building, seepage and sliding. The current study aims to evaluate the effect of load and influence of topographic parameters such as the gradient and height of the slope on the road embankment stability with sandy landfill in the Mfilou district, Brazzaville City (Congo republic). The evaluation of the road embankment slope stability and the discovery of the implications of topographic parameters on the embankment safety management were carried out in a hilly area. A database was created based on the site inventory from field studies complemented by experimental and desk investigation. The soils properties and values of topographic parameters were incorporated to the embankment slope model as well. So, the slope modelling was carried out in different scenarios such as different slope heights, different slope angles with and without load effect. Then embankment stability was analysed with Slide 6.0 software finding slip surfaces from limit equilibrium methods. Results showed that despite the slope instability caused by the load effect, but the variation of topographic parameters affects the embankment stability as well.
    VL  - 11
    IS  - 5
    ER  - 

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Author Information
  • Department of Geology, Faculty of Sciences and Techniques, Marien Ngouabi University, Brazzaville, Congo

  • Mechanical, Energy and Engineering Laboratory, Higher National Polytechnic School, Marien Ngouabi University, Brazzaville, Congo

  • Department of Geology, Faculty of Mines and Geology, Higher Institute of Mines and Metallurgy, Moa, Cuba

  • Department of Geology, Faculty of Sciences and Techniques, Marien Ngouabi University, Brazzaville, Congo

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