the stability calculation methods for large cylinder structures in coastal soft clay foundation are compared
and the determination of design values of soft clay in the wave action and effects of foundation scour on the stability of large cylinder structures are discussed. It is shown that the stability calculation methods of the traditional gravity structures are unsuitable for (can not be used in) the stability analysis of the large cylinder structures in soft soil foundation. It is proposed that the dynamic behavior of soft clay in the action of circle load
the evolution of foundation in fluid scouring and dynamic interaction simulation of large cylinder structures and soft clay under the wave excitation should be the key problems to be solved in the practical application of large cylinder structures in coastal soft clay foundation.