A coupled discrete-element model of fluid-saturated rock and the results of studying of the impact of a fluid on the shear strength of a rock under combined compression and shear

Andrey V. Dimaki, Evgeny V. Shilko, Sergey G. Psakhie

    Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

    Аннотация

    Within a discrete-element model of a porous permeable elastic-plastic rock, filled with a fluid, we have studied the shear strength of a fractured interface zone (a shear band) between blocks of a geological medium subject to compression and shear. Under these conditions, a fluid pore pressure is controlled by interplay of dilation of the elastic-plastic shear band and fluid transport between the blocks and the interface. We have found that the shear strength is a unique function of a combination of parameters, which includes viscosity of a fluid, permeability of the medium, shear rate and a characteristic size of the system. Based on the simulation results we have constructed the generalized binomial dependence of the shear strength of samples on the obtained combination of parameters.

    Язык оригиналаАнглийский
    Название основной публикацииProceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017
    РедакторыManolis Papadrakakis, Eugenio Onate, Bernhard A. Schrefler
    ИздательInternational Center for Numerical Methods in Engineering
    Страницы1193-1202
    Число страниц10
    Том2017-January
    ISBN (электронное издание)9788494690921
    СостояниеОпубликовано - 1 янв 2017
    Событие7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017 - Rhodes Islad, Греция
    Продолжительность: 12 июн 201714 июн 2017

    Конференция

    Конференция7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017
    СтранаГреция
    ГородRhodes Islad
    Период12.6.1714.6.17

    ASJC Scopus subject areas

    • Applied Mathematics
    • Engineering(all)
    • Computational Mathematics

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  • Цитировать

    Dimaki, A. V., Shilko, E. V., & Psakhie, S. G. (2017). A coupled discrete-element model of fluid-saturated rock and the results of studying of the impact of a fluid on the shear strength of a rock under combined compression and shear. В M. Papadrakakis, E. Onate, & B. A. Schrefler (Ред.), Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017 (Том 2017-January, стр. 1193-1202). International Center for Numerical Methods in Engineering.