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- W2034257438 abstract "Le site du Port Tanger Méditerranée, situé sur les flyschs de Tisirène de l’unité de Tanger faisant partie du domaine externe rifain, a fait l’objet de plusieurs campagnes de reconnaissance géotechnique qui ont permis d’établir une synthèse géologique et géotechnique et de repérer des couches de sables saturés susceptibles de liquéfier sous l’effet des séismes. L’analyse du risque de liquéfaction est conduite sur la base des essais in situ (CPTU) et selon les deux séismes considérés dans le projet. Elle montre que la zone à risque est réduite et se situe entre les essais CPT22 et 25 et que le séisme lointain est plus néfaste pour le terrain que le séisme de source proche. La charge appliquée par l’ouvrage réduit ou atténue selon les cas le potentiel de liquéfaction, il subsiste cependant dans la partie superficielle du sol sur environ 3m de hauteur. Tangier Mediterranean Port: geological & geotechnical study & assessing the risk of earthquake-related liquefaction using the Cone Penetration Test (CPTU) The geological basement of the Tangier Mediterranean port (southeastern Gibraltar coast) is here studied to locate sand-saturated levels, in order to assess the risk of earthquake-induced liquefaction. Geological and geotechnical field analyses based on cone penetration tests (CPTU) lead to the four following results: (i) the high-risk area is reduced and is situated between CPT22 and 25, (ii) clayey silty sands prone to earthquake-related liquefaction directly occur beneath the protecting structures, (iii) the distant earthquake source is more fatal for the ground beneath the studied port, than the earthquake from a close source, and (iv) the load applied by the building can reduce the potential of liquefaction, but remains efficient only for the first 3m depth. Keywords: Tangier Mediterranean Port; Geology; Geotechnical; Cone penetration test; Earthquakes intensity of project; Risk of liquefaction." @default.
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- W2034257438 date "2014-01-01" @default.
- W2034257438 modified "2023-10-14" @default.
- W2034257438 title "Port Tanger Méditerranée : étude géologique et géotechnique, et analyse du risque de liquéfaction à partir des essais in situ" @default.
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- W2034257438 doi "https://doi.org/10.5150/revue-paralia.2014.n01" @default.
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