Settlement of a high embankment and overpass structures in Ottawa

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AuthorSearch for:
TypeArticle
Journal titleCanadian Geotechnical Journal
ISSN0008-3674
Volume6
Issue1
Pages3345; # of pages: 13
Subjectsettlement; overpasses; embankments; soil consolidation; clay soils; pier foundations
AbstractSettlement observations have been conducted over a 5-year period on a 20-ft-high earth embankment and 2 highway overpass structures founded on spread footings over a thick deposit of Leda clay. The applied stresses were considerably less that the overconsolidation pressure of the clay. In the five years since construction, settlements of approximately 12 cm have occurred, of which about 4 cm occurred immediately. The observed settlements are compared with settlement predictions on the basis of various types of laboratory tests. The observations indicate that significant settlements occur on a long-term basis and can be attributed to a slow yielding of the clay structure. Piezometers failed to detect any excess pore water pressure due to slow process of consolidation.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-RP-384
NRC number10515
2510
NPARC number20374203
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Record identifier6ecafbfa-103c-4329-b23f-d1b9e3c4704c
Record created2012-07-23
Record modified2016-05-09
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