Downdrag measuremetns on 270-ft compostie piles

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Journal titleASTM Special Technical Publication
Pages1540; # of pages: 26
Subjectpile foundations; marine clay; surface friction; embankments; deformation modulus; pile foundations; bearing piles; composite piles; highway embankment; instrumentation; pile friction; downdrag; skin friction; electroosmosis; deformation modulus; concrete; curing (hydration); evaluation
AbstractThe Quebec autoroute on the North Shore of the St. Lawrence River between Montreal and Quebec City traverses deep deposits of compressible marine clay. One of the overpass structures at Berthierville is supported on twelve 39-in. (1 m) diameter reinforced concrete piles, which pass through 270 ft (82 m) of soil and finally rest on shale bedrock. The paper presents measurements of settlement and pore water pressures in the soil at various depths under the fill, and of axial deformations in two of the piles. It provides a set of relatively rare field observations on which to base an approximate evaluation of the rate and magnitude of negative skin friction development under the described field conditions.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number10677
NPARC number20374983
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Record identifierb8c515b8-7de0-4ebf-bbbb-f9ad67f2b016
Record created2012-07-23
Record modified2016-05-09
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