Settlement observations at Kars Bridge

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Journal titleCanadian Geotechnical Journal
Pages2845; # of pages: 18
Subjectsettlement; bridges; sensitive clay; soil consolidation; Bridges
AbstractA 26-ft.-high approach fill was constructed in November 1959 for a bridge over the Rideau River near Kars, Ontario. The fill was placed over 50 ft. of Leda clay, the lower 30 ft. of which was extremely sensitive and compressible. Prior testing indicated that the preconsolidation pressure of the clay would be exceeded. Settlement gauges and piezometers under the fill have been observed since the start of construction. After 7 1/2 years, 20 in. of settlement has occurred under the centre of the fill. Settlements are continuing at an appreciable rate although the excess pore water pressure has dissipated to a low level and is nearly constant through the clay layer.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number10086
NPARC number20378408
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Record identifiere5aa2004-7d97-40f6-a012-45287eadc011
Record created2012-07-24
Record modified2016-05-09
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