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Coal Mining Stability

assessment of slope stability in opencast coal,key words slope stability, flacslope, numerical modelling, slope angle, failure modes 1. introduction the various methods of mining a coal seam can be classified under two headings namely opencast mining and underground mining. the opencast mining is now the most mainstream technique for the significant bit of the worlds coal creation. in india,.a study on the impact of longwallmining operation on,may 31, 2021 the slope-pillar structure is defined as an artificial construction shaped by a surface highwall mining and an underground longwall mining. in order to study the impact of stress variations induced by the longwall-mining operations on the stability of a slope-pillar structure, no. 30101-1 working face of nanliang coal mine was selected as the study subject..

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