Multi Year Ice Strength Test Program PDF Download

"The design of an offshore structure requires a knowledge of pressures exerted on sections of that structure by impinging ice. As the size of [an] affected area increases, there are grounds to suspect that the effective pressure on that area decreases. This size effect on ice strength has not been well defined, if in fact it exists, and it is the aim of this program to obtain data providing a means of quantifying it. As well, it was sought to verify a theory describing the mechanism of ice compression failure against a structure (Reference 10). Thus at the request of Gulf Canada, GEOTECH conducted a field testing program on a land-fast multi-year flow off of the south coast of Bernard Island to determine local ice pressures on structures for design. In situ strength tests were done using flatjacks of varying size and shape. These tests are described in Section 2.0 and 3.0 of the report. The test results are analysed in Section 4.0. Conventional shallow pit "flaking" tests were also done using a stiff plate and ram system. 100 mm diameter cores were taken using a CRREL type core barrel. The drill holes were tested with a borehole jack by Fenco Consultants Ltd., and were temperature profiled"--ASTIS database.