Validity of simplified Analysis of Stability of Caison Breakwaters on Rubble Foundation Exposed to Impulsive Loads

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Abstrakt

Wave slamming on vertical breakwaters cause a sudden, impulsive load that may cause a caisson to slide on its foundation. Alternatively, geotechnical failure may occur in the subsoil. This paper investigates whether simple analytical solutions, accounting only for the sliding along the caisson–foundation interface, can be utilized to properly determine the deformations of the breakwater. Comparisons are made with results obtained by numerical models that include the material response of the soil. Firstly, a computational model is suggested that assumes a fully drained behavior of the subsoil. Secondly, a fully coupled dynamic pore-water-flow model is introduced. The computational examples clearly demonstrate that the deformations of the soil as well as the pore pressures must be accounted for in order to get a reliable prediction of caisson deformations during wave impact.
OriginalsprogEngelsk
TitelCoastal Engineering 2010 : Proceedings of the 32nd International Conference on Coastal Engineering
RedaktørerJane McKee Smith, Patrick Lynett
Antal sider14
ForlagCoastal Engineering Research Council
Publikationsdato2011
StatusUdgivet - 2011
Begivenhed32nd International Conference on Coastal Engineering ICCE 2010 - Shanghai, Kina
Varighed: 30 jun. 20105 jul. 2010

Konference

Konference32nd International Conference on Coastal Engineering ICCE 2010
LandKina
ByShanghai
Periode30/06/201005/07/2010
NavnProceedings of the International Conference on Coastal Engineering
Nummer32

Bibliografisk note

Paper No. 239

Emneord

  • Caisson Breakwaters
  • Rubble Foundations
  • FLAC
  • Soil-Water Model

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  • Citationsformater

    Andersen, L., Burcharth, H. F., & Andersen, T. L. (2011). Validity of simplified Analysis of Stability of Caison Breakwaters on Rubble Foundation Exposed to Impulsive Loads. I J. M. Smith, & P. Lynett (red.), Coastal Engineering 2010: Proceedings of the 32nd International Conference on Coastal Engineering Coastal Engineering Research Council. Proceedings of the International Conference on Coastal Engineering, Nr. 32