IDEAS home Printed from https://ideas.repec.org/a/spr/nathaz/v111y2022i1d10.1007_s11069-021-05060-6.html
   My bibliography  Save this article

Numerical simulation of the Qulong Paleolandslide Dam event in the late pleistocene using the finite volume type shallow water model

Author

Listed:
  • Xiaohui Sun

    (Jilin University
    Taiyuan University of Technology)

  • Xudong Han

    (CGS)

  • Jianping Chen

    (Jilin University)

  • Yiding Bao

    (Jilin University)

  • Wei Peng

    (Jilin University)

Abstract

The Qulong paleolandslide dam event lies in the Benzilan-Batang zone of the upper Jinsha River. The Jinsha River is one of the most extensive water resources in southwest China. Here, the geological environment is complex, and the tectonic activity is intense. Thus, landslide dam events occur frequently, forming large barrier lakes. Analyzing and understanding these events is vital to ensure the safe development and utilization of land and water resources in the Jinsha River valley. In this study, the Qulong paleolandslide dam event, which formed a large barrier lake, is analyzed in detail. The topographic and grain-size analyses of the barrier lake's Qulong gully and lacustrine sediments imply that the Qulong paleolandslide occurred during the last interglacial period. The instability of moraine in the source area caused the landslide dam event that forms a rapid landslide and then transformed into a high-speed clastic flow. Historical data indicate that more than 90% of barrier lakes along the Jinsha are earthquake-triggered landslides, so the relationship between magnitude and epicenter distance of earthquake that induced the Qulong paleolandslide are calculated by Newmark method. The SFLOW software has been used to examine the post-failure evolution and movement characteristics of the Qulong paleolandslide. The results show that the speed of clastic flow reaches 41 m/s or so, and the clastic flow blocks the ancient Jinsha River channel whose thickness reaches 100 m or so, the largest up to 111 m, and its length is more than 4.5 km. Moreover, the high-speed clastic flow runs over the front of the Yinduba platform.

Suggested Citation

  • Xiaohui Sun & Xudong Han & Jianping Chen & Yiding Bao & Wei Peng, 2022. "Numerical simulation of the Qulong Paleolandslide Dam event in the late pleistocene using the finite volume type shallow water model," 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. 111(1), pages 439-464, March.
    • Handle: RePEc:spr:nathaz:v:111:y:2022:i:1:d:10.1007_s11069-021-05060-6
    DOI: 10.1007/s11069-021-05060-6
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1007/s11069-021-05060-6
    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/s11069-021-05060-6?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. Neta Wechsler & Oded Katz & Yehoshua Dray & Ilana Gonen & Shmuel Marco, 2009. "Estimating location and size of historical earthquake by combining archaeology and geology in Umm-El-Qanatir, Dead Sea Transform," 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. 50(1), pages 27-43, July.
    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.
    1. Bo Tan & Chengbang An & Chao Lu & Lei Tang & Lai Jiang, 2023. "The Suitability of Prehistoric Human Settlements from the Perspective of the Residents," Land, MDPI, vol. 12(12), pages 1-21, November.

    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:111:y:2022:i:1:d:10.1007_s11069-021-05060-6. 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: 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.