Перегляд Mining of Mineral Deposits по темі "stress-strain state"
Зараз показуються 1-10 з 12
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Analysis of operation parameters of partial backfilling in the context of selective coal mining
(National Mining University, 2019-12-30)Purpose is to determine factors of effect of mechanical parameters and geometry of packs, constructed using the undercut rocks in the process of selective coal mining, on the state of geomechanical system within a mine ... -
Computational model for evaluating the state of geomechanical systems during computing experiments
(National Mining University, 2017-03-30)Purpose. To create a model allowing integration of the diverse features identified for the rock massif behavior by differentiation of various theories and real phenomena into a single information-analytical flow. Methods. ... -
Development and analysis of computational model of geomechanical system “layered massif – working support”
(National Mining University, 2016-06-30)Purpose. Substantiating the method for forecasting rock pressure manifestation in the system “layered massif – working support” on the basis of displacement patterns detection at any arbitrary point of the preparatory ... -
Experimental characteristics for deformation properties of backfill mass
(National Mining University, 2020-09-30)Purpose. Determining the deformation properties of backfill mass used to preserve the continuity of the coal-rock stratum enclosing mine workings. Methods. To achieve the purpose set, laboratory studies have been performed ... -
Modeling of bearing massif condition during chamber mining of ore deposits
(National Mining University, 2016-06-30)Purpose. To examine rock mass stress changes in hanging wall and footwall rocks of the deposit during mining of primary and secondary stoping chambers. Methods. Analytical research into stress-strain state around stoping ... -
Phenomena of stability of the coal seam roof with a yielding support
(National Mining University, 2019-12-30)Purpose. Determining the conditions and parameters for ensuring the stability of the coal seam roof with a yielding support in the area adjacent to face and behind it under the influence of dynamic loads based on the ... -
Research into rock mass geomechanical situation in the zone of stope operations influence at the 10th Anniversary of Kazakhstan’s Independence mine
(Dnipro University of Technology, 2021-03-31)Purpose. Predicting the stress-strain state (SSS) of the rock mass in the zone of stope operations influence using the selfcaving mining system and the calculation of the load-bearing capacity of mine workings support at ... -
Research into stress-strain state of the rock mass condition in the process of the operation of double-unit longwalls
(National Mining University, 2020-06-30)Purpose. To substantiate changes in stress-strain state of rock mass in the process of long-pillar mining with the help of double-unit longwalls while evaluating stress of a mine field in terms of Lvivvuhillia SE mine. Methods. ... -
Research of rock pressure manifestations in rocks of parting during descending and simultaneous mining of C9 and C10Top coal seams
(National Mining University, 2017-03-30)Purpose. To estimate the probability of interstratal rocks stability loss during simultaneous mining of two seams in series in the descending order. Methods. Methods of a computing experiment and mine observations were ... -
Stability of the overworked slightly metamorphosed massif around mine working
(National Mining University, 2020-06-30)Purpose. The study of mechanisms of the overworked slightly metamorphosed massif stability around mine working using the example of laminal rocks in the Western Donbas (Ukraine). Methods. The analysis of the overworking ...