Abstract
Soil mechanical and submarine mass-movement initiation studies often use static and quasi-static approaches to determine the strength of soils against external mechanical stresses. However, many natural processes pose time variant stresses on soils, and hence exert key roles for submarine slope stability and submarine mass-movement initiation. Prominent examples are earthquake-, wind-, wave- and current-forces and alternating man-made loading on offshore constructions. Most soils show a weaker response to periodic loading — making dynamic and cyclic loading experiments mandatory for offshore natural hazard and risk assessment. Dynamic and cyclic triaxial testing are essential in liquefaction studies of granular soils and creep investigations of cohesive and granular sediments. So far, competing setups are used with mechanical spindles, pneumatic actuators or full hydraulic drives.
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Acknowledgments
The authors want to thank the reviewers Kerstin Lesny and Kate Moran for improving this paper by their helpful comments. This study was funded by the Deutsche Forschungsgemeinschaft as part of the DFG-Research Center MARUM at the University of Bremen.
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Kreiter, S. et al. (2010). Advanced Dynamic Soil Testing — Introducing the New Marum Dynamic Triaxial Testing Device. In: Mosher, D.C., et al. Submarine Mass Movements and Their Consequences. Advances in Natural and Technological Hazards Research, vol 28. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3071-9_3
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DOI: https://doi.org/10.1007/978-90-481-3071-9_3
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