Bearing capacity of pile preloaded by downdrag

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ConferenceProceedings, 10th International Conference on Soil Mechanics and Foundation Engineering: 15 June 1981, Stockholm, Sweden
Pages631636; # of pages: 6
Subjecttubular piles; bearing capacity; marine clay; loading tests
AbstractAn instrumented steel-pipe pile, 49 m long, driven through a highway embankment into a deep deposit of compressible marine clay accumulated a peak downdrag load P[N] of 1.52 MN after 10 years. After the pile was filled with concrete, a comprehensive load-testing program was carried out over a period of 20 days to investigate the load-carrying capability of the pile. The locked-in downdrag load behaved as stored energy in the pile. Transient and short-term live loads up to P[N] and cyclic loads to stress levels of P[N] + or - 33 1/3% were easily supported. Plunging failure occurred at an applied load of 2 P[N].
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number19689
NPARC number20375552
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Record identifierbaed7071-b89c-48fc-bb4e-9e0051f678eb
Record created2012-07-23
Record modified2016-05-09
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