Analysis of the experimental compressibility of deep water marine sediments from the Gulf of Guinea |
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| Authors: | Mahdia Hattab Jean-Louis Favre |
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| Institution: | 1. Laboratoire de Physique et Mécanique des Matériaux, FRE CNRS 3236, Université Paul Verlaine, Ile du Saulcy – 57045 Metz Cedex1, France;2. Laboratoire de Mécanique des Sols, Structures et Matériaux, UMR CNRS 8579, Ecole Centrale Paris, Grande voie des vignes, 92295 Châtenay Malabry Cedex, France |
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| Abstract: | This study strives to analyze the compressibility of deep water marine sediments originating from the Gulf of Guinea. Our approach is multi-scaled and, on the macroscopic level, based on two equations which link the overburden effective stress with the liquidity index, the Biarez & Favre equation on the one hand, and the Burland equation on the other hand (after calculation of the ICL expression as a function of the IL parameter). On the local level, the evolution of the microstructures is analysed and compared with GoG remoulded clay. Two additional observation techniques have been used, the scanning electron microscope and the mercury intrusion porosimetry. |
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| Keywords: | Deep water marine sediments Identification parameters Compressibility Scanning electron microscope Mercury intrusion porosimetry |
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