As the offshore wind power tends to locate farther from the coast for efficient generation of electricity,udthe interest of foundation systems of which construction sequence is economical and convenient under deep waterudcircumstance is increasing. Mooring anchor system has been utilized as one of the most popular ways for anchoring ofudvessels or floating structures, and various types of anchor and mooring system have been investigated for largeudstructures under diverse loading condition. In this paper, the pullout behavior of the modified embedded suction anchorud(ESA) is studied using numerical analysis. The behavior of the embedded suction anchor is simulated using finiteudelement method, and Adaptive Meshing (AM) technique approach incorporated in Abaqus/Explicit is applied toudsimulate the large deformation of soil caused by continuous pullout of anchor. The three dimensional modeling isudperformed to duplicate the round body shape with flanges of the embedded suction anchor. The anchor is assumed asudrigid body and clay is considered as a linear elastic-perfectly plastic soil model with a Tresca yield criterion. Theudpullout capacities after different initial rotations show similar results with the maximum horizontal pullout capacity andudthe load inclination of 30?? or 40?? at the bottom point of the ESA has an advantage in that reduced pullout load can rotateudthe ESA.
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