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Some special geotechnical properties of pumice deposits

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Abstract

 This paper describes the characteristics of pumice soils from the area of Mount Vesuvius and discusses sinking, watering and other geotechnical tests on pumice from a number of sites. Attention is drawn to the presence of both inter- and intra-particle voids within this material and appropriate modifications to the standard solid-water-air phase diagram are suggested to take account of this. The importance of understanding the structure of the pumice and its response to rainfall/ground water conditions is discussed in relation to both landslips and stabilisation works.

Resumé

Cet article décrit les caractéristiques des sols constitués de ponces dans la région du Vésuve et discute les différents essais concernant le comportement de ces sols vis-à-vis de l'eau dans un certain nombre de sites différents. L'attention est attirée sur la présence de vides inter aussi bien qu'intraparticulaires et les auteurs proposent des modifications du diagramme traditionnel des phases solide-eau-air pour tenir compte de ces phénomènes. L'importance d'une bonne compréhension de la structure de ces sols et de leur comportement vis-à-vis des circulations d'eau est illustrée a l'aide d'exemples de glissements et de travaux de confortement.

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Received: 30 September 1997 · Accepted: 20 January 1998

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Esposito, L., Guadagno, F. Some special geotechnical properties of pumice deposits. Bull Eng Geol Env 57, 41–50 (1998). https://doi.org/10.1007/s100640050019

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  • DOI: https://doi.org/10.1007/s100640050019

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