Determination of filling parameters for protective stripes of variable rigidity at the combined system of development of declivous coal seams on deep horizons
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Authors: Medianyk V.Yu., Yavorskyi A.V.
The questions of safety and maintenance of the preparatory openings on deep horizons using combined mine system are examined. The parameters of filling material for raising of protective stripes of variable rigidity for to show an improvement technical and economical parameters, work safety and ecology.
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 2010_4 Medyanik
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 2012-12-14  545.58 KB  1188 |
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