Numerical modelling of fracture processes in thermal shock weakened rock

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


    This paper presents some preliminary results of a research project aiming at the simulation of thermal shock assisted percussive drilling. In the present study, a numerical model for transient thermal shock induced damage in rock is presented. This model includes a rock mesostructure description accounting for different mineral properties and a thermo-mechanical constitutive model based on embedded discontinuity finite elements. In the numerical simulations, the thermal shock induced damge process is first simulated. Then the uniaxial
    compression test on thermally affected numerical rock samples is carried out. The effect of thermal shock is demonstrated by comparison to uniaxial compression test simulation on intact rock. The results show that the thermal-shock assisted rock breakage is a feasible idea to be extended to percussive drilling as well.
    Original languageEnglish
    Title of host publicationGeomechanics and Geodynamics of Rock Masses, Volume 1 Proceedings of the 2018 European Rock Mechanics Symposium
    EditorsVladimir Litvinenko
    PublisherCRC Press
    ISBN (Electronic)9780429867729
    Publication statusPublished - May 2018
    Publication typeA4 Article in conference proceedings
    EventEuropean Rock Mechanics Symposium - St. Petersburg, Russian Federation
    Duration: 22 May 201826 May 2018


    ConferenceEuropean Rock Mechanics Symposium
    Country/TerritoryRussian Federation
    CitySt. Petersburg

    Publication forum classification

    • Publication forum level 1


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