IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2023i3p2585-d1053417.html
   My bibliography  Save this article

Determination of Efficiency Factors for Closely Spaced Strip Footings on Cohesive–Frictional Soils

Author

Listed:
  • Dulpinit Noo-Iad

    (Department of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat University, Pathumthani 12120, Thailand)

  • Jim Shiau

    (School of Engineering, University of Southern Queensland, Toowoomba, QLD 4350, Australia)

  • Weeraya Chim-Oye

    (Department of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat University, Pathumthani 12120, Thailand)

  • Pitthaya Jamsawang

    (Soil Engineering Research Center, Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand)

  • Suraparb Keawsawasvong

    (Department of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat University, Pathumthani 12120, Thailand)

Abstract

The bearing capacity of closely spaced footings has become one of the important topics in geotechnical engineering research owing to the rapid development in urban areas around the world. In this paper, we propose three efficiency factors that can be used to describe the bearing capacity effects of closely spaced footings using Terzaghi’s traditional bearing capacity equation. With an advanced finite-element limit analysis of upper and lower bounds, both the closely spaced strip footings and the multiple closely spaced strip footings on cohesive–frictional soil with a surcharge effect were investigated. The numerical results showed that the efficiency factors were significantly influenced by the internal frictional angle and the spacing ratio. Several comparisons were made with those published in the literature. Furthermore, the failure mechanisms of closely spaced footings are presented, while design charts were produced with a wide range of practical parameters. This study should be of great interest to foundation engineering practitioners.

Suggested Citation

  • Dulpinit Noo-Iad & Jim Shiau & Weeraya Chim-Oye & Pitthaya Jamsawang & Suraparb Keawsawasvong, 2023. "Determination of Efficiency Factors for Closely Spaced Strip Footings on Cohesive–Frictional Soils," Sustainability, MDPI, vol. 15(3), pages 1-17, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:3:p:2585-:d:1053417
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/3/2585/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/15/3/2585/
    Download Restriction: no
    ---><---

    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:gam:jsusta:v:15:y:2023:i:3:p:2585-:d:1053417. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.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.