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新安煤矿高突“三软”煤层透气性低且坚固性系数小、松软破碎的特点,针对这些特点,应用了多项瓦斯治理技术,重点分析了瓦斯治理技术如何改变应力场,卸压增透,改善抽采效果的举措。实验结果表明,这些瓦斯治理技术能有效增加冲出煤量、延长瓦斯抽采衰减期、减小钻孔塌孔程度、提高抽采浓度,能够达到快速消突提高巷道掘进速度的效果。同时为相同条件下高突矿井瓦斯治理技术具有良好的参考价值。
In view of these characteristics, a number of gas treatment technologies have been applied in this project, with emphasis on analyzing how gas treatment technology can change the stress field and relieve pressure Enhance penetration, improve the pumping effect of the move. The experimental results show that these gas treatment technologies can effectively increase the outflow of coal, extend the decay period of gas drainage, reduce the level of borehole collapse and improve the pumping concentration, and can achieve the effect of rapid elimination and improvement of tunneling speed. At the same time, it has a good reference value for the gas control technology of high-outburst mine under the same conditions.