Variation of Inner Pressure in Caisson Type Structure due to Ice Growth

Abstract

Recently, caisson type structures have been employed as offshore structures in regions of extreme cold. As the liquid, sand or gravel filling proceeds, the caisson freezes and the internal pressure rises. It has previously been verified that this pressure rise, due to an increase of volume caused by ice growth, depends strongly upon the permiability coefficient of the sea ice forming within the sands and gravels. This paper deals with the variation of inner pressure in two kinds of model caissons due to ice growth.