1. • The moment-rotation response of caissons in sand of Suction Caisson Foundations on Very Dense Sand", has been extensively investigated by model tests andOffshore Technology Conference, 3-6 May, Houston, field trials, and modelled theoretically by finite Paper 10994 element analyses and force resultant (yield surface) 5. Byrne, B.W. and Houlsby, G.T. (2002) "Experimental models.