Ice berm for use as a foundation for an arctic offshore structure

Abstract From the Canadian patent

Arctic berm for offshore structure foundation. It is made of several ballasted ice slabs stacked one over the other and welded together to form a solid mass. The berm is obtained by delimiting a uniform ice thickness area over landfast ice, area made up of a central rectangle and arms radiating from the central rectangle each arm defining successive rectangles. After all rectangles are ballasted sufficiently for them to sink when cut as slabs, one rectangle is cut into a first slab is allowed to sink slightly and the rectangle next to it in one of the arms is cut and moved over the first slabs to be welded to it into a solid mass. The remaining rectangles of the arms are, in turn, likewise …