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Experimental investigation of acoustic emissions and their moment tensors in rock during failure

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F14%3A00430243" target="_blank" >RIV/67985530:_____/14:00430243 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.ijrmms.2014.05.003" target="_blank" >http://dx.doi.org/10.1016/j.ijrmms.2014.05.003</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.ijrmms.2014.05.003" target="_blank" >10.1016/j.ijrmms.2014.05.003</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Experimental investigation of acoustic emissions and their moment tensors in rock during failure

  • Original language description

    We study acoustic emissions (AEs) associated with shear and tensile failures around a horizontal borehole in a sandstone sample subjected to triaxial stress. The aim is to relate the AE event rate to macroscopic observations of sample deformation and thepercentage of isotropic and deviatoric components of the seismic moment tensors to the expected failure mechanisms. The horizontal hole interferes with the applied load and forms a strongly spatially dependent anisotropic stress fi eld, focusing the crack initiation into both shear and tensile failures. The recorded AEs follows reasonably well existing damage models, but the elastic solution of hoop stress does not represent the onset of failure around the borehole. The focal mechanisms correlate withthe orientation of macroscopic fractures in the sample. Events close to the borehole show a higher fraction of isotropic percentage in moment tensors compared to events occurring in the macroscopic fracture featuring higher double-couple

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    DC - Seismology, volcanology and Earth structure

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GAP210%2F12%2F1491" target="_blank" >GAP210/12/1491: Physical processes in an earthquake source: from micro- to macro-scale</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2014

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    International Journal of Rock Mechanics and Mining Sciences

  • ISSN

    1365-1609

  • e-ISSN

  • Volume of the periodical

    70

  • Issue of the periodical within the volume

    September

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    10

  • Pages from-to

    286-295

  • UT code for WoS article

    000341365900029

  • EID of the result in the Scopus database