IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v14y2022i19p12825-d936185.html
   My bibliography  Save this article

Seabed Liquefaction around Pipeline with Backfilling Trench Subjected to Strong Earthquake Motions

Author

Listed:
  • Qiuzhe Wang

    (Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, China
    Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China)

  • Jiang Bian

    (Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, China)

  • Wenting Huang

    (Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, China)

  • Qingrui Lu

    (Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, China)

  • Kai Zhao

    (Institute of Geotechnical Engineering, Nanjing Tech University, Nanjing 210009, China
    Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China)

  • Zhaoyan Li

    (Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China)

Abstract

As an indispensable part of the lifeline for the offshore gas and oil industry, submarine pipelines under long-term marine environmental loadings have historically been susceptible to earthquakes. This study investigates the impact of trench backfilling on the residual liquefaction around a pipeline and the induced uplift of a pipeline under the combined action of an earthquake, ocean wave and current loading. A fully coupled nonlinear effective stress analysis method, which can consider the nonlinear hysteresis and the large deformation after liquefaction of the seabed soil, is adopted to describe the interaction between the seabed soil and the submarine pipeline. Taking a typical borehole in the Bohai strait as the site condition, the nonlinear seismic response analysis of the submarine pipeline under the combined action of seismic loading and ocean wave and current is carried out. The numerical results show that trench backfilling has a significant impact on the seismic response of the pipeline. The existence of trench backfilling reduces the accumulation of the residual excess pore water pressure, so that the seabed liquefaction around the pipeline is mitigated and the uplift of the pipeline is also decreased.

Suggested Citation

  • Qiuzhe Wang & Jiang Bian & Wenting Huang & Qingrui Lu & Kai Zhao & Zhaoyan Li, 2022. "Seabed Liquefaction around Pipeline with Backfilling Trench Subjected to Strong Earthquake Motions," Sustainability, MDPI, vol. 14(19), pages 1-14, October.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:19:p:12825-:d:936185
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/14/19/12825/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/14/19/12825/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Su-Yang Wang & Hai-Yang Zhuang & Hao Zhang & Hong-Jun He & Wei-Ping Jiang & Er-Lei Yao & Bin Ruan & Yong-Xin Wu & Yu Miao, 2021. "Near-surface softening and healing in eastern Honshu associated with the 2011 magnitude-9 Tohoku-Oki Earthquake," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Jin Yu & Chao Chen & Changjun Li, 2022. "Safety Analysis and Emergency Response of Suspended Oil and Gas Pipelines Triggered by Natural Disasters," Sustainability, MDPI, vol. 14(24), pages 1-15, December.

    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.
    1. Lang Liu & Xiaotian Yang & Boquan Yan & Siyu Miao, 2022. "Dynamic Responses of RC Girder Bridge under Heavy Truck and Seismic Loads Combined," Sustainability, MDPI, vol. 14(15), pages 1-20, July.

    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:14:y:2022:i:19:p:12825-:d:936185. 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: 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.