Review on the Uplift Failure Criterion of Suction Caisson Foundation

Suction caisson foundation,a new foundation type used for offshore floating structure,is more widely used in marine engineering and its bearing behavior is also one of the current research focus due to a variety of advantages,such as convenient transportation and construction,saving time,reusability and low cost.So far,there are no widely recognized uplift failure criterions and studies specifically about the uplift failure criterions of suction caisson foundation.Therefore,it is very necessary to discuss the uplift failure criterions of suction caisson foundation.The existing uplift failure criterions are reviewed and analyzed based on load point location and loading direction.Finally,the existing problems and research direction of the uplift failure criterion of suction caisson foundation are pointed out as well.