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Information × Registration Number 0207U002914, 0106U006850 , R & D reports Title Development of coal mass gazodinamical activity suppressing method parameters with account of its collectoring properties popup.stage_title Head Alexeev A.D., Registration Date 22-02-2007 Organization Institut of physies of mountain processes popup.description2 The relationships derived from simulations of geomechanical processes occurring at relief hole boring in the near-face area of coal mass with various gas bearing capacity during development working have enabled to establish an effective diameter of the relief hole depending on coal seam thickness, rock pressure magnitude (or occurrence depth), and ultimate strength of coal subject to gas content as well as required number of holes depending on a total volume of cavity in the coal mass at given gassing kinetics. The novel method of outburst danger prediction or coal seam ranking is proposed based on established relationships for activation energy variations of methane release from a coal substance depending on gas dynamic condition of coal mass.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close