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LOAD TRANSFER OF PILE FOUNDATIONS IN WARMING FROZEN GROUND

Session: Permafrost and Cold Regions Geotechnology / Pergélisol et géotechnologie des régions froides

Abdulghader Abdulrahman, Carleton University (Canada)
Mohammad Rayhani, Carleton University (Canada)

An experimental research program has been undertaken to investigate the response of pile foundations to frost thawing and adfreeze bond in Leda clay. Field pile load tests were conducted at the Canadian Geotechnical Research Site No. 1 located in Gloucester, Ontario. The results of static pile load tests in frozen and unfrozen Leda clay showed dramatic reduction in pile capacities upon frost degradation. Load-displacement relationships for tested piles and theoretical estimation of long-term adhesion of frozen and unfrozen Leda clay are presented and discussed.