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    Using Shear Strain Localisation to Model the Fracturing Around Gallery in Unsaturated Callovo-Oxfordian Claystone

    New search for: Chau, Kam-Tim
    New search for: Zhao, Jidong
    New search for: Pardoen, B.
    New search for: Levasseur, S.
    New search for: Collin, F.

    Galleries drilling leads to damage propagation, fracturing and properties modifications in the surrounding medium. The prediction of the damaged zone behaviour is an important matter and needs to be properly assessed. To do so the fractures can be modelled using shear strain localisation. The coupled local second gradient model is used under unsaturated conditions to correctly model the strain localisation behaviour. The permeability evolution and the rock desaturation due to air ventilation in galleries are considered. Finally, a hydro-mechanical modelling of a gallery excavation in Callovo-Oxfordian claystone is performed leading to a fairly good representation of the damaged zone.

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    Using Shear Strain Localisation to Model the Fracturing Around Gallery in Unsaturated Callovo-Oxfordian Claystone

    New search for: Chau, Kam-Tim
    New search for: Zhao, Jidong
    New search for: Pardoen, B.
    New search for: Levasseur, S.
    New search for: Collin, F.

    Galleries drilling leads to damage propagation, fracturing and properties modifications in the surrounding medium. The prediction of the damaged zone behaviour is an important matter and needs to be properly assessed. To do so the fractures can be modelled using shear strain localisation. The coupled local second gradient model is used under unsaturated conditions to correctly model the strain localisation behaviour. The permeability evolution and the rock desaturation due to air ventilation in galleries are considered. Finally, a hydro-mechanical modelling of a gallery excavation in Callovo-Oxfordian claystone is performed leading to a fairly good representation of the damaged zone.

    Access

    Check access
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    Order at Subito €

    Using Shear Strain Localisation to Model the Fracturing Around Gallery in Unsaturated Callovo-Oxfordian Claystone

    New search for: Chau, Kam-Tim
    New search for: Zhao, Jidong
    New search for: Pardoen, B.
    New search for: Levasseur, S.
    New search for: Collin, F.

    Galleries drilling leads to damage propagation, fracturing and properties modifications in the surrounding medium. The prediction of the damaged zone behaviour is an important matter and needs to be properly assessed. To do so the fractures can be modelled using shear strain localisation. The coupled local second gradient model is used under unsaturated conditions to correctly model the strain localisation behaviour. The permeability evolution and the rock desaturation due to air ventilation in galleries are considered. Finally, a hydro-mechanical modelling of a gallery excavation in Callovo-Oxfordian claystone is performed leading to a fairly good representation of the damaged zone.

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    Title:

    Using Shear Strain Localisation to Model the Fracturing Around Gallery in Unsaturated Callovo-Oxfordian Claystone

    Additional title:

    Springer Ser.Geomech.,Geoengineer.

    Contributors:

    Chau, Kam-Tim (editor) / Zhao, Jidong (editor) / Pardoen, B. (author) / Levasseur, S. (author) / Collin, F. (author)

    Conference:

    International Workshop on Bifurcation and Degradation in Geomaterials ; 2014 ; Hong Kong, Hong Kong

    Published in:

    Bifurcation and Degradation of Geomaterials in the New Millennium ; Chapter: 41 ; 285-291

    Springer Series in Geomechanics and Geoengineering

    Publication date:

    2014-12-30

    Size:

    7 pages

    ISBN:

    978-3-319-13506-9 , 978-3-319-13505-2

    ISSN:

    1866-8763 , 1866-8755

    DOI:

    https://doi.org/10.1007/978-3-319-13506-9_41

    Type of media:

    Article/Chapter (Book)

    Type of material:

    Electronic Resource

    Language:

    English

    Keywords:

    Shear Band , Pore Water Pressure , Excavation Damage Zone , Gradient Model , Permeability Evolution Engineering , Offshore Engineering , Geotechnical Engineering & Applied Earth Sciences

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