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  • Failure characteristics of surface vertical wells for relieved coal gas and their influencing factor2020-06-12
  • Element geochemistry and cleaning potential of the No. 11 coal seam from Antaibao mining district2020-06-12
  • A New Mode of Coal Mining Under Buildings with Paste-Like Backfill Technology2020-06-12
  • Study of "3-Step Mining" Subsidence Control in Coal Mining Under Buildings2020-06-12
  • Deformation effect of lateral roof roadway in close coal seams after repeated mining2020-06-12
  • Experimental study on stability control technology of surrounding rock of deep roadways in coal mine2020-06-12
  • Dynamic subsidence basins in coal mines based on rock mass theological theory2020-06-12
  • Vertical transportation system of solid material for backfilling coal mining technology2020-06-12
  • Law of surface movement for multi-coal seam strip mining ?2020-06-12
  • Experimental Study on Roof Structure Characteristics and Its Failure Pattern in Coal Roadway2020-06-12
  • Sustainable development of coal cities in Heilongjiang province based on AHP method2020-06-12
  • △P index with different gas compositions for instantaneous outburst prediction in coal mines2020-06-12
  • Fracture mechanics model of fully mechanized top coal caving of shallow coal seams and its applicati2020-06-12
  • Network Multifunctional Substation with Embedded System in Coal Mine2020-06-12
  • Analysis and Research of Factors Affecting Coal Mining with Plough2020-06-12
  • Theories and techniques of coal bed methane control in China2020-06-12
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