IDEAS home Printed from https://ideas.repec.org/a/spr/nathaz/v121y2025i10d10.1007_s11069-025-07283-3.html
   My bibliography  Save this article

Discrete element analyses of the dynamic response of granular soil cushion against rockfall inclined impact

Author

Listed:
  • Weigang Shen

    (Southwest Jiaotong University
    Ministry of Natural Resources of China
    Key Laboratory of Geohazard)

  • Zhilin Bian

    (Southwest Jiaotong University)

  • Xiaoyan Zhao

    (Southwest Jiaotong University)

  • Gang Luo

    (Southwest Jiaotong University)

  • Yuping Zhang

    (Ministry of Natural Resources of China
    Key Laboratory of Geohazard)

Abstract

This study investigates the inclined impact of rockfall onto a soil cushion covering on rock shed via a numerical model established by the discrete element method (DEM). In the numerical DEM model, the rockfall and soil cushion are mimicked as spherical particles, while the rock shed is simplified as a layer of fixed spherical particles. The numerical model is first validated and then is used to perform a series of impact tests with various impact velocities and impact angles. Based on these tests, the dependence of the impact force, transmitted force and penetration depth on the impact angle are analyzed. The corresponding results indicate that increasing the impact angle can effectively decrease the penetration depth, the normal impact force and normal transmitted force. The tangential impact force and tangential transmitted force could increase with the impact angle for the cases of the impact angle smaller than 30°. In addition, the dependence of the tangential impact force and tangential transmitted force on the impact angle is interpreted from the point of view of force chain. The proposed findings and results can give some new insights for the design of rock shed.

Suggested Citation

  • Weigang Shen & Zhilin Bian & Xiaoyan Zhao & Gang Luo & Yuping Zhang, 2025. "Discrete element analyses of the dynamic response of granular soil cushion against rockfall inclined impact," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 121(10), pages 12353-12369, June.
    • Handle: RePEc:spr:nathaz:v:121:y:2025:i:10:d:10.1007_s11069-025-07283-3
    DOI: 10.1007/s11069-025-07283-3
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1007/s11069-025-07283-3
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1007/s11069-025-07283-3?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

    for a different version of it.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:spr:nathaz:v:121:y:2025:i:10:d:10.1007_s11069-025-07283-3. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    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.