Aimed at top corner gas management at the low gas blasting face, by upper goaf drainage with decompression in self coal seam, the experience is tried, the effect is obvious.
针对低瓦斯炮采工作面上隅角瓦斯治理，利用本层上采空区泄压释放，进行尝试实验，效果明显。
The on-the-spot application showed that it is very effective for pulse ventilation in prevention and control of accumulated gas at the upper corner angle of coal face.
现场应用结果表明，射流脉冲通风对治理上隅角瓦斯积聚具有良好的效果。
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