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- Title
Effect of cold temperatures on properties of unfrozen Troll clay.
- Authors
Perkins, Steven W.; Sjursen, Morten
- Abstract
Oedometer and triaxial experiments have been performed on North Sea Troll clay previously warmed to room temperature and tested at both room temperature and 0 °C to assess the effect of cold temperature on undrained strength and consolidation properties. In general, both the undrained strength and preconsolidation pressure increase as the temperature decreases. Many subsea areas of development in extreme northern or southern latitudes experience seafloor temperatures continuously around 0 °C. These results suggest that conventional laboratory testing at room temperature of samples from these areas leads to an underestimation of strength and preconsolidation pressure. Therefore, additional testing is recommended to assess the effect of a warming and cooling cycle on strength and consolidation properties, as previous work suggests that some consolidation is induced by this temperature cycle and may be responsible for the ensuing strength gain.
- Subjects
NORTH Sea; NORWAY; LOW temperatures; CLAY; LATITUDE; OCEAN bottom temperature; SOIL temperature
- Publication
Canadian Geotechnical Journal, 2009, Vol 46, Issue 12, p1473
- ISSN
0008-3674
- Publication type
Article
- DOI
10.1139/T09-041