In order to accumulate data required to develop a new anchoring system for offshore floating structures, the behavior and holding capacity of drag anchors were examined in this study. Model experiments were performed using a small size of three stockless type anchors (TIS type, AC-14 type and DA type). The capacities of these anchors were compared using a model ground which consists of sand. To investigate the behavior of drag anchors, the position, penetration depth and rotating angle of the anchors were measured at the end of each pulling test. From the measurements of the holding capacity of the drag anchors, it is found that the DA stockless anchor is the best. From the behavior of drag anchors, it is also found that the DA stockless anchor is the most stable during pulling. The results obtained in this study may be helpful for predicting the behavior and holding capacity of the full-scale anchors for offshore floating structures.
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