IDEAS home Printed from https://ideas.repec.org/a/caa/jnljfs/v68y2022i5id21-2022-jfs.html
   My bibliography  Save this article

Cut slope stability assessment along forest roads using the limit equilibrium approaches and Slide software

Author

Listed:
  • Mehran Nasiri
  • Mojtaba Mohammadzade

    (Department of Forest Engineering, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran)

Abstract

Calculating the factor of safety (FS) as slope stability factor is necessary to prevent environmental damage. Therefore, this paper aims to (i) calculate FS using the limit equilibrium approaches and Slide software and (ii) investigate the stability of slopes according to calculated FS (Janbu and Bishop methods) and status of different sites in the study area (Hyrcanian forest of Iran). Six landslides were selected along the forest road by a field survey. Landslide dimensions including length, width, and height were measured using meters. Slope gradients were measured using the Suunto clinometer. The Slide software was used to evaluate the stability analysis of slopes. According to laboratory tests on soil samples the average of the liquid limit was recorded as 58%. The results of the direct shear test showed that the rate of soil cohesion (c) and coefficient of friction angle (φ) decreased with an increase in moisture content. According to the results, the factors of safety for landslide sites (Sites 1-6) were calculated to be 1.3, 0.65, 0.76, 0.55, 1.19 and 1.51, respectively. These calculated FS can accurately determine the slope status in terms of slope stability. According to the software classification, the status of Site 1 is "susceptible to landside". Sites 2, 3 and 4 are "very high risk". Also, the status of Sites 5 and 6 are "high risk" and "stable", respectively. The instability of the slopes in studied sites is related to the drainage system (lack of culverts or ditches) as well as marlstone as bedrock. According to the calculated FS in different sites and comparison of the obtained results with the real conditions of sites, it can be concluded that the slope stability analysis in the Slide software is very accurate and it can be used to determine the factor of safety under different conditions in terms of morphology, hydrology and soil mechanics.

Suggested Citation

  • Mehran Nasiri & Mojtaba Mohammadzade, 2022. "Cut slope stability assessment along forest roads using the limit equilibrium approaches and Slide software," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 68(5), pages 182-189.
    • Handle: RePEc:caa:jnljfs:v:68:y:2022:i:5:id:21-2022-jfs
    DOI: 10.17221/21/2022-JFS
    as

    Download full text from publisher

    File URL: http://jfs.agriculturejournals.cz/doi/10.17221/21/2022-JFS.html
    Download Restriction: free of charge
    File URL: http://jfs.agriculturejournals.cz/doi/10.17221/21/2022-JFS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/21/2022-JFS?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Seyed Ata Ollah HOSSEINI & Elham Fazeli SHAHROODI & Majid LOTFALIAN & Aidin PARSAKHOO, 2017. "Evaluating the effect of biological stabilization on landslide control at the edge of forest road," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 63(11), pages 496-502.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnljfs:v:68:y:2022:i:5:id:21-2022-jfs. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.