PREDICTIVE ASSESSMENT OF THE STRESS STATE OF UNDEROPENCAST ROCK MASS AND OBSERVATION WORKING IN THE DEVELOPMENT OF STOPING OPERATIONS
V. D. Baryshnikov, D. V. Baryshnikov, L. N. Gakhova
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Opencast, ore ceiling, stress state, post-limiting deformation
Abstract
Predictive assessment of the stress-strain state of underopencast rock mass was made during underground mining at the Internatsionalnaya mine of PJSC Alrosa. For the conditions of stress distribution in an intact rock mass, in accordance with the hypothesis of A. Geim and A. N. Dinnik, the features of stress formation in ore ceiling and observation working of geomechanical monitoring at various mining stages were determined. An upper estimate is given for the stress values in the vicinity of the observation working.
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