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    Geomechanical Characterization of the Volcaniclastic Material Involved in the 2002 Landslides at Stromboli

    Source: Journal of Geotechnical and Geoenvironmental Engineering:;2010:;Volume ( 136 ):;issue: 002
    Author:
    Tatiana Rotonda
    ,
    Paolo Tommasi
    ,
    Daniela Boldini
    DOI: 10.1061/(ASCE)GT.1943-5606.0000218
    Publisher: American Society of Civil Engineers
    Abstract: During the 2002 eruption, the NW flank of Stromboli volcano (Southern Italy) experienced large landslides that produced tsunami waves with a maximum runup of 10 m in height. This paper focuses on the geomechanical behavior of the loose volcaniclastic layers, the weakest component of the deposit forming the volcano flank. Tests on the coarse-grained volcaniclastic soil and on the rock material forming the grains were conducted in dry conditions, a feature of the subaerial slope. The rock material, in spite of its high porosity, exhibits relatively high stiffness and strength due to the remarkable continuity of the solid skeleton. Accordingly, the volcaniclastic soil is characterized by high shear strength. During shear tests, however, significant grain crushing occurs, which partly explains the nonlinear shear strength envelope and the strain softening associated with contractive behavior. Grain crushing was also found to affect compressibility and its time dependency, investigated under oedometric conditions.
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      Geomechanical Characterization of the Volcaniclastic Material Involved in the 2002 Landslides at Stromboli

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/61989
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    • Journal of Geotechnical and Geoenvironmental Engineering

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    contributor authorTatiana Rotonda
    contributor authorPaolo Tommasi
    contributor authorDaniela Boldini
    date accessioned2017-05-08T21:46:39Z
    date available2017-05-08T21:46:39Z
    date copyrightFebruary 2010
    date issued2010
    identifier other%28asce%29gt%2E1943-5606%2E0000233.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/61989
    description abstractDuring the 2002 eruption, the NW flank of Stromboli volcano (Southern Italy) experienced large landslides that produced tsunami waves with a maximum runup of 10 m in height. This paper focuses on the geomechanical behavior of the loose volcaniclastic layers, the weakest component of the deposit forming the volcano flank. Tests on the coarse-grained volcaniclastic soil and on the rock material forming the grains were conducted in dry conditions, a feature of the subaerial slope. The rock material, in spite of its high porosity, exhibits relatively high stiffness and strength due to the remarkable continuity of the solid skeleton. Accordingly, the volcaniclastic soil is characterized by high shear strength. During shear tests, however, significant grain crushing occurs, which partly explains the nonlinear shear strength envelope and the strain softening associated with contractive behavior. Grain crushing was also found to affect compressibility and its time dependency, investigated under oedometric conditions.
    publisherAmerican Society of Civil Engineers
    titleGeomechanical Characterization of the Volcaniclastic Material Involved in the 2002 Landslides at Stromboli
    typeJournal Paper
    journal volume136
    journal issue2
    journal titleJournal of Geotechnical and Geoenvironmental Engineering
    identifier doi10.1061/(ASCE)GT.1943-5606.0000218
    treeJournal of Geotechnical and Geoenvironmental Engineering:;2010:;Volume ( 136 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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