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charbon concassé

broken coal

industries charbonnière et minière - iate.europa.eu

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The contribution of conveyed coal to mine heat problems... The evaluation of the heat released by conveyed coal itself consists of theoretical treatment and laboratory investigations of heat transfer through broken coal....

construction européenne / industries charbonnière et minière / politique énergétique - core.ac.uk - PDF: core.ac.uk

Publications scientifiques

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Experimental research into the evolution of permeability in a broken coal mass under cyclic loading and unloading conditionsThe permeability characteristics of a broken coal mass under repeated loading and unloading conditions exert significance on spontaneous combustion of coal in goaf during the mining of coal seam groups....

général - core.ac.uk - PDF: doaj.org

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Estimating the unconfined yield strength of coal in the case of longwall coal mining with hanging wall top caving... Highly productive excavation of coal with a hanging wall top caving leads to intensive deformations in the hanging wall and the broken coal can be considered as bulk material....

général - core.ac.uk - PDF: doaj.org

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Feasibility of a polymer foaming agent as a grouting material for broken coal masses... The grouting reinforcement effect of the proposed PF material on broken coal masses was investigated and compared with that of traditional superfine cement (SC) through simulation experiments....

général - core.ac.uk - PDF: doaj.org

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Experiment study into permeability of...MTS815.02 Rock Mechanics Test System, we tested the permeability of Broken Coal Gangue during its compacting process, getting the relations between the axial stress and the differential seepage pressure and between the pressure gradient and the...

général - core.ac.uk - PDF: www.srdit.si