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1. Research on Rational Width of Entry Protection Coal-Pillar in Large Mining Height Work-Face of Shallow Coal Seam

Author

Xin Bin Xu, Bang Jun Wang, and Ting Feng Cui

Subjects
Engineering, Work (electrical), Computer simulation, business.industry, Face (geometry), General Engineering, Coal mining, Geotechnical engineering, Problems in coal mining, Deformation (meteorology), business, Roof, Coal pillar
Abstract

For the study on the problem of rational width of entry protection coal-pillar, according to the gateway of 5103 mining face in Heshan Mine, through theoretical calculation and numerical simulation, rational width of entry protection coal-pillar was educed, which was 25 m. The roof and floor and 2-sides deformation were both 35 mm through engineering practice, and its feasibility was demonstrated, which provided some theoretical references for preserving reasonable coal-pillar for the similar coalface with large mining height.

Published
2014

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