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  • Flow-type landslides in pyroclastic soils on flysch bedrock in southern Italy: the Bosco de' Preti case study.

    Author(s) : Santo, A.Crescenzo, G. diForte, G.Papa, R.Pirone, M.Urciuoli, G.

    Author Affiliation : Dipartimento di Ingegneria Civile, Edile e Ambientale (DICEA), Università degli Studi di Napoli Federico II, Naples, Italy.

    Author Email : giovanni.forte@unina.it

    Journal article : Landslides 2018 Vol.15 No.1 pp.63-82 ref.72

    Abstract : In the last 20 years, major efforts have been made to investigate shallow flow-type landslideslandslidesSubject Category: Miscellaneous
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    . Such phenomena are usually rainfall-induced and in the geological context of CampaniacampaniaSubject Category: Geographic Entities
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    (Southern ItalyitalySubject Category: Geographic Entities
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    ) occur in pyroclastic soils resting on steep slopesslopesSubject Category: Miscellaneous
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    mainly constituted by carbonate or volcanic bedrock and by flysch deposits. They are generally complex landslides with an early soilsoilSubject Category: Miscellaneous
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    slide and a subsequent flow evolution. In this paper, a database of flowslides occurring in recent years within the flysch deposits of Avellino (Campanian Apennines) is first discussed and then the case study of Bosco de' Preti landslide on March 4, 2005, is described. The geological and geotechnical characteristicscharacteristicsSubject Category: Properties
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    of the soils involved are described and the monitoringmonitoringSubject Category: Techniques, Methodologies and Equipment
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    of the groundwatergroundwaterSubject Category: Miscellaneous
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    heads collected over 1 year from June 2005 to June 2006 is also shown. The last part of the paper illustrates the results of numerical modelling of the landslide triggering to gain insights into such phenomena. SlopeslopeSubject Category: Properties
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    stabilitystabilitySubject Category: Properties
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    analyses are preceded by hydrological modelling of the slope based on the monitoring data. Numerical analysisanalysisSubject Category: Techniques, Methodologies and Equipment
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    demonstrated that the rainfall during the 2 months preceding the event was able to fully saturate the pyroclastic cover and to establish positive pore water pressure at the depth of the surface of ruptureruptureSubject Category: Miscellaneous
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    , a soil condition never witnessed in carbonatic contexts. Hence, a combination of antecedent (predisposing factors) and single rainfall events (triggering factors) led to slope failure, as usually happens in pyroclastic soils in carbonatic and volcanic contexts. Finally, analysis of the historical landslides together with detailed investigation of the Bosco de' Preti case study permitted comparison between flow-type landslides in pyroclastic soils on carbonatic/volcanic bedrock and those on flysch.

    ISSN : 1612-510X

    DOI : 10.1007/s10346-017-0854-3

    Record Number : 20183212360

    Publisher : Springer Berlin

    Location of publication : Heidelberg

    Country of publication : Germany

    Language of text : English

    Indexing terms for this abstract:

    Descriptor(s) : analysisanalysisSubject Category: Techniques, Methodologies and Equipment
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    , case studiescase studiesSubject Category: Techniques, Methodologies and Equipment
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    , characteristicscharacteristicsSubject Category: Properties
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    , databasesdatabasesSubject Category: Publications
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    , groundwatergroundwaterSubject Category: Miscellaneous
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    , historyhistorySubject Category: Disciplines, Occupations and Industries
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    , hydrological factorshydrological factorsSubject Category: Properties
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    , hydrologyhydrologySubject Category: Miscellaneous
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    , landslideslandslidesSubject Category: Miscellaneous
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    , modelsmodelsSubject Category: Techniques, Methodologies and Equipment
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    , monitoringmonitoringSubject Category: Techniques, Methodologies and Equipment
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    , rainrainSubject Category: Climate Related
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    , ruptureruptureSubject Category: Miscellaneous
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    , slopeslopeSubject Category: Properties
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    , slopesslopesSubject Category: Miscellaneous
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    , soilsoilSubject Category: Miscellaneous
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    , stabilitystabilitySubject Category: Properties
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    Identifier(s) : data banks, landslips, pore water, rainfall

    Geographical Location(s) : CampaniacampaniaSubject Category: Geographic Entities
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    , ItalyitalySubject Category: Geographic Entities
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    Broader term(s) : Developed Countriesdeveloped countriesSubject Category: Miscellaneous
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    , European Union Countrieseuropean union countriesSubject Category: Institutions and Organisations
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    , Mediterranean Regionmediterranean regionSubject Category: Biogeographic Regions
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    , OECD Countriesoecd countriesSubject Category: Institutions and Organisations
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    , Southern Europesouthern europeSubject Category: Geographic Entities
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    , EuropeeuropeSubject Category: Geographic Entities
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    , ItalyitalySubject Category: Geographic Entities
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