Abstract
A series of experiments on drained creep of marine sediment indicates that strength degradation results from the creep process, which implies an associated reduction in slope stability. Furthermore, the highest creep potential of a sediment may be at its preconsolidation stress. Results from the experiments on samples from Georges Bank continental slope were also used in conjunction with a preliminary theoretical model to predict creep displacements. For the case illustrated in this report, steep slopes (>20°) and thick sections (>30 m) give rise to substantial creep and probable creep rupture; as angles or thicknesses decrease, displacements rapidly become negligible.
Creep may be a significant geologic process on many marine slopes. Not only can it cause major displacements of surface sediment, but it may also be the precursor to numerous slope failures.
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References
Hill PR, Moran KM, Blasco SM (1982) Creep deformation of slope sediments in the Canadian Beaufort Sea. Geo-Marine Letters 2:163–170
Field ME, Clark Jr SH, Green HG (1977) Evaluation of geologic hazards in OCS petroleum lease areas, southern California continental borderland. Proceedings Ninth Offshore Technology Conference pp 69–78
Singh A, Mitchell JK (1968) General stress-strain-time function for soils. Journal of Soil Mechanics and Foundations ASCE 94:21–46
Yen BC (1969) Stability of slopes undergoing creep deformation. Journal of Soil Mechanics and Foundations Division ASCE 95:1075–1095
Booth JS, Silva AJ, Jordan SA (1984) Slope-stability analysis and creep susceptibility of Quaternary sediments on the northeastern United States continental slope. In: Denness B (ed) Seabed Mechanics. International Union of Theoretical and Applied Mechanics and International Union of Geodesy and Geophysics Symposium Proceedings, Graham & Trotman Limited, London, p. 65–75
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Silva, A.J., Booth, J.S. Creep behavior of submarine sediments. Geo-Marine Letters 4, 215–219 (1984). https://doi.org/10.1007/BF02281709
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DOI: https://doi.org/10.1007/BF02281709