DOI: 10.11799/ce201612005
Gas drainage scheme design for simultaneous mining of two coal seams in high gas mine
DONG Chong-ze
Abstract：In order to ensure the safe mining in high gas middle-close coal seams group, aiming at the mining conditions and gas occurrence characteristics in Yangquan No?9 and No?15 coal seam, the feasibility of two-seam simultaneous mining was analyzed according to the constitution relation of gas emission, the gas drainage scheme was designed, and the gas drainage roadway layout, drilling technical parameters and goaf gas drainage scheme were confirm. The project obtained favorable effect, and offered references for gas control in similar low-permeability coal seam.
Keywords：high gas minelow-permeability coal seamgas drainagegas emissiondrilling arrangement
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 13-16 )