Ice Scour Eventにともなう地盤内の変形・発生応力に関する基礎的研究  [in Japanese] Experimental study on soil deformation and stress within seabed during ice scour event  [in Japanese]

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Author(s)

Abstract

Ice-Scour Event is a phenomenon that occurs when deformed ice such as an ice ridge comes into contact with seabed. Ice-Scour has been reported to cause damage to communication cables and water intake pipelines. Although most of technical issues against the ice-scour have been focused on estimating the scour depth/burial depth, it will be also important to consider a sub-scour deformation, which means stress transmission or soil deformation within the seabed below the sea ice.<BR>In this study, we carried out basic model experiments related to the sub-scour de Iformation by setting up some test conditions. We found that the stress within the seabed during ice-scouring does not depend on a drift speed of a model ice but an attack angle, and that the model ice with the smaller attack angle is though to cause the soil deformation of larger areas because of restriction/compression of a large amount of soil in front of inclined surface of an ice.

Journal

  • PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN

    PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN (20), 1241-1246, 2004

    Japan Society of Civil Engineers

Codes

  • NII Article ID (NAID)
    130003776737
  • Text Lang
    JPN
  • ISSN
    0912-7348
  • Data Source
    J-STAGE 
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