Internally Pressurized Spherical and Cylindrical Cavities in Rock Salt

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    Abstract

    The paper deals with the stress distribution around cavities under pressure in an infinite, non-linear elastic material. A homogeneous stress state is assumed at infinity. For spherical and cylindrical cavities simple formulae are derived for the stress concentration, the extent of the non-linear zone and the volume reduction. Results are given for cavities in rock salt, and a comparison with measured stress concentrations is used to support the assumption of a hydrostatic stress state in undisturbed salt formations. Finally a method to estimate convergence due to creep is outlined.
    Original languageEnglish
    JournalInternational Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts
    Volume15
    Issue number5
    Pages (from-to)219-224
    ISSN0148-9062
    Publication statusPublished - 1978

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