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以平煤一矿丁6-32030高瓦斯弱突出危险型工作面为例,结合该工作面瓦斯含量整体低、局部瓦斯赋存不均、瓦斯涌出量大的特点,对回采期间的瓦斯采取整体布局,突出重点的瓦斯治理思路。在低瓦斯区域采用顺层钻孔、上隅角插管、迎面斜交钻孔相结合的瓦斯治理方案。在局部瓦斯赋存不均区域又新增了沿空留巷及埋管抽采的治理技术,效果显著,对类似高瓦斯弱突出危险型工作面瓦斯综合治理具有一定的指导意义。
Taking Pingmei No.1 Ding 6-32030 high-gas and weakly prominent dangerous face as an example, taking the low total gas content, uneven local gas occurrence and large gas emission in this coal face, the gas taken during the recovery period The overall layout, highlighting the key gas management ideas. In the low gas area using the layer of drilling, the upper corner of the intubation, facing the intersection of oblique drilling combined gas treatment program. In addition, some new technologies for gob-side entry retaining and buried pipe drainage have been added in the area where local gas is unevenly distributed. The results are significant and have certain guiding significance for the comprehensive management of gas with similar types of workfaces with high-gas-content and weak-outburst danger.