Influence Analysis and Application of N₂ on the Determination of the Coal Seam Outburst Risk

In addition to contain CH₄, coal bed methane in mine often contains N₂, CO₂ and other gases. Through theoretical analysis and experimental research, this article analyzes the impact of N₂ on the determination of initial speed of gas diffusion and gas pressure, clears the influence degree of N₂ on gas pressure and initial speed of gas diffusion determination in four single parameters.