抄録
Ice load acting on offshore structures in ice-covered areas is one of items of great importance for their design. Deformed ice such as ice ridge with consolidatedl ayer of ice may give a larger load because of its larger thickness of ice. However, an ice indentation test mainly has been conducted by using level sheet ice (undeformedi ce). Therefore, to make consolidated layer model ice as a test sheet ice, ice blocks with various size were made in cold room, and they were mixed with water close to its freezing temperature. The ice sheetu sed for an indentation test was made of freshwater, so that ice failure could be observed. An indentation velocity (V) and ice blocks ize (a) were varied as parameters, a nd their effectso n ice load werei nvestigatedw ith comparingt heir trend to that of undeformed ice.
