2012. The Society of Naval Architects and Marine Engineers
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Predicting the performance of a drag embedment anchor (DEA) in a clay seabed requires: (1) prediction of anchor embedment depth as a function of drag distance, and (2) prediction of load capacity for any given embedment depth. Anchor pullout capacity is influenced by a number of variables including anchor size and configuration, the type and dimensions of the mooring line, properties of the seabed, and details of the anchor installation procedure. A simple model for DEA performance has been developed at Texas A&M University which predicts anchor embedment and capacity in terms of the above-mentioned variables. Recent laboratory model tests that were undertaken to validate the predictive model are discussed in this paper. The paper also presents the results of a parametric study undertaken to assess the influence of anchor/mooring system characteristics and seabed properties on anchor load capacity.
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