Sandstone Coal Mine Roof

This thesis presents a logical design methodology for coal mine extraction optimiation under massive sandstone roof as developed though a case study analysis of the Quinsam Coal 4 South mine a shallow underground room and pillar mine with a massive sandstone roof. This research is intended to guide Quinsam Coal and other coal mines globally in efforts to develop or optimie coal extraction

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Global service benefit the world

Quality is the life of the enterprise, is the soul of the brand. Red star machine firmly believe that only more professional intelligent techniques can produce better and better equipment.

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