Displacement of piles under dynamic loads in frozen soils

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ConferenceRoger J.E. Brown Memorial Volume. Proceedings Fourth Canadian Permafrost Conf.: 02 March 1981,
Pages555559; # of pages: 5
SubjectPermafrost; Soils; frozen soils; alternating stresses; piles; displacement (movement); dynamic loads; bearing capacity; frozen sand; frozen natural soil; alternating load; wood piles; concrete piles
AbstractThe effect of a small alternating load superimposed on a static load on the displacement rate of piles in a frozen sand and a frozen natural soil has been studied at -2.2 degrees C. An alternating stress as small as 3 per cent of the static stress caused an increase in rate of displacement in the region where the displacement rate was decreasing with time, and doubled the steady-state displacement rate of both wood and concrete piles. Under dynamic loads the design life of pile foundations calculated on the basis of allowable settlement will be reduced or, alternatively, the bearing capacity of piles for dynamic loads will be smaller than the bearing capacity for static loads.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number20767
NPARC number20386080
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Record identifier345f53db-9de3-42f0-aaf5-675a765bb803
Record created2012-07-25
Record modified2016-05-09
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