トート係留に使用するための杭型及び平板アンカーの試設計と適用性検討

抄録

To evaluate the applicability of high holding anchors for the tout mooring, we have carried out some studies on two kinds of anchors. One of anchors is a pile type anchor, which is called free fall anchor and it is driven into seabed soil by dropping. The other one is a plate type anchor, namely vertical loaded anchor, which is penetrated into sea bed through dragging. First we conducted installation analyses on the free fall and penetrating simulations, as well as the dragging and penetrating ones, to obtain their penetration depth and inclination. Then, structural and soil analyses for both anchors were carried out by using the beam column theory and FEM with nonlinear soil springs, respectively. The paper presents the results of the simulations, the models for structure and soil analyses to examine stresses and deformations and the calculated holding present capacities.