Abstract
A series of centrifugal tests were conducted to evaluate the maximum horizontal pullout capacity of a suction pile embedded in sand by varying the diameter and the length of the pile. The loading point was located at 75% of the pile length from the top, and the results were compared with the prediction equations of suction piles. As a result, it is found that the horizontal pullout capacity of a suction pile is proportional to its diameter and the square of length. The equation derived from Rankine’s passive earth pressure equation predicts the test results very well. When pulling out the test pile from the left the test pile was apt to rotate clockwise, and its rotational point at the maximum pullout capacity was found to be in the upper part of the pile. In addition, on the basis of the center of the suction pile, the vertical displacements for all the cases appeared to develop toward the ground surface.
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