Analytical and Experimental Studies of Drag Embedment Anchors and Suction Caissons

Ryan Beemer

    Research output: ThesisNon-UWA Thesis

    Abstract

    The need for experimental and analytical modeling in the field of deep water offshore anchoring technologies is high. Suction caisson and drag embedment anchors (DEA) are common anchors used for mooring structures in deep water. The installation process of drag embedment anchors has been highly empirical, employing a trial and error methodology. In the past decade analytical methods have been derived for modeling DEA installation trajectories. However, obtaining calibration data for these models has not been economical. The development of a small scale experimental apparatus, known as the Laponite Tank, was developed for this thesis. The Laponite Tank provides a quick and economical means of measuring DEA trajectories, visually. The experimental data can then be used for calibrating models. The installation process of suctions caissons has benefited from from a more rational approach. Nevertheless, these methods require refinement and removal methodology requires development. In this thesis, an algorithm for modeling suction caisson installation in clay has been presented. An analytical method and modeling algorithm for removal processes of suction caissons in clay was also developed. The installation and removal models were calibrated to field data. These analytical and experimental studies can provide a better understanding of installation of drag embedment anchors and the installation and removal of suction caissons.
    Original languageEnglish
    QualificationMasters
    Awarding Institution
    • Texas A&M University
    Supervisors/Advisors
    • Aubeny, Charles, Supervisor, External person
    Publication statusUnpublished - 8 Aug 2011

    Fingerprint Dive into the research topics of 'Analytical and Experimental Studies of Drag Embedment Anchors and Suction Caissons'. Together they form a unique fingerprint.

    Cite this