Modelling the seepage flow during caisson installation in a natural seabed

Asaad Faramarzi, Koohyar Faizi, Samir Dirar, Moura Mehravar, Ouahid Harireche

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Seepage plays a crucial role in the installation of suction caisson foundations and this has been considered by several researchers via experimental, numerical and analytical studies. In most of the available numerical and analytical studies, the actual seabed profile has been modelled using a number of assumptions and considering a limited number of idealised conditions to simplify the problem. However, it is well established that the behaviour of seabed, and soil in general, is a complex and nonhomogeneous one and that these assumptions can affect the reliability of the results. This paper examines the installation of suction caisson foundation into a realistic and natural seabed profile. It identifies the changes in seepage flow at different stages of installation and the role of crucial parameters such as permeability on the installation process is discussed. The results show that a significant increase in resistance to penetration occurs at the interface layers.
Original languageEnglish
Title of host publicationProceedings of the 24th UK Conference of the Association for Computational Mechanics in Engineering 31 March – 01 April 2016, Cardiff University, Cardiff
Pages150-153
Number of pages4
Publication statusPublished - 1 Apr 2016

Keywords

  • suction caisson
  • installation
  • natural seabed soil
  • permeability

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