Earth pressures on Ottawa outfall sewer tunnel

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Journal titleCanadian Geotechnical Journal
Pages1732; # of pages: 16
Subjectearth pressure; settlement; tunnels; marine clay; Sewers; pousee des terres; tassement; tunnel; argile marine
AbstractMeasurements of surface settlement, changes in piezometric levels and earth pressures were undertaken on a 10-ft diameter tunnel that passed through extremely sensitive and moderately overconsolidated Leda clay in Ottawa. The instrumentation is described, and the results are given for a period of 5 years, from 1 year before construction until 4 years after completion. Results of the measurements are compared with those obtained from a tunnel of similar size in Detroit clay. Because of the method of construction there was opportunity to conduct measurements on both the rather flexible temporary steel lining and the more rigid permanent reinforced concrete lining.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number10516
NPARC number20374392
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Record identifierd4dd6719-f03c-4f09-925a-8c185d2105ac
Record created2012-07-23
Record modified2016-05-09
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