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  • VII International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED 2017) Rhodes Island, Greece, 12-14 June, 2017
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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

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Cita com:
hdl:2117/190879

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Dimaki, Andrey V.
Shilko, Evgeny V.
Psakhie, Sergey G.
Document typeConference report
Defense date2017
PublisherCIMNE
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
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.
URIhttp://hdl.handle.net/2117/190879
ISBN978-84-946909-2-1
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  • International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED) - VII International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED 2017) Rhodes Island, Greece, 12-14 June, 2017 [117]
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