Date of Publication :17th January 2023

Abstract: Now a days suction pile anchors have gained popularity due to development of offshore wind mill projects. In the locations where wind mills are to be constructed in offshore areas, the water depths can vary from 15 to 60m and soil modulus values also vary in the order of 10 MPa to 100 MPa. Suction pile anchor can be installed with the aid of suction and it is a sustainable foundation system which resists the hydrodynamic wave forces. In this paper, the influence of load position on the displacement of pile anchor for different aspect ratios of anchor and different soil modulus values is presented and discussed. The anchor is modelled in cohesionless soil using PLAXIS finite element software. The load position influenced the displacement of anchor. Deeper level load position (Z=load position form top of anchor = L/2) showed lesser displacement due to higher passive resistance mobilization. The increased soil modulus is resulted less displacement as it may be attributed to mobilization of more frictional resistance. For the anchor aspect ratio, L/D = 1, the upward displacement is higher compared to horizontal displacement. Further as the L/D of anchor increases, the horizontal displacement is more as compared to the vertical displacement.

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