| Download | - View final version: A method of estimating excess pore pressures beneath embankments on sensitive clays (PDF, 1.8 MiB)
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| Author | Search for: Law, K. T.1; Search for: Bozozuk, M.1 |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Article |
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| Subject | sensitive clay; embankments; pressure tests |
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| Abstract | A laboratory testing program for predicting undrained excess pore pressures beneath embankments constructed on sensitive clays is reported. A study of the pore pressure response, based on Henkel's equation applied to triaxial and plane strain tests performed on marine clay from South Gloucester, Ontario, provides a basis for comparing behaviour under conditions of axisymmetry and plane strain. Comparison shows that (1) pore pressure is smaller in plane strain than in axisymmetric conditions; (2) a below-elastic response prevails at the prepeak stage of the stress-strain curve; and (3) there is an elastic response at the peak. Finite element and modified elastic methods are developed for estimating undrained excess pore-water pressures from laboratory test results. The estimated values are used to evaluate the effect of consolidation under the center of an embankment during construction. The procedure is illustrated with case records. |
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| Publication date | 1979-11 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | DBR-P-866 |
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| NRC number | NRCC 17858
NRC-IRC-67 |
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| NPARC number | 20359115 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 1b71cc9e-bd3b-4336-ac06-f52d9183330d |
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| Record created | 2012-07-20 |
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| Record modified | 2024-03-15 |
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