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为提高高瓦斯低透气性松软煤层的瓦斯抽采能力,结合适当的钻孔布置开发了一种利用静态破碎技术来压裂煤体、提高煤层透气性的技术方法,并在五阳矿7601掘进工作面进行了实际应用。实践结果表明:深孔定向静态破碎卸压增透技术卸压增透效果显著,比同等条件下的普通钻孔抽采效果成倍提高,为高瓦斯、低透气性松软煤层的瓦斯高效抽采提供了可靠的技术保障。
In order to improve the gas drainage capacity of soft gas coal seam with high gas permeability and low gas permeability, a technical method of using static crushing technology to fracture coal and improve permeability of coal seam was developed in combination with proper drilling layout. Face has been the practical application. The practice results show that the effect of pressure-relief and anti-penetration by deep-hole directional static crushing, pressure-relief and penetration enhancement technology is remarkable, which is double that of the ordinary drilling under the same condition, which is the high efficiency gas drainage with high gas permeability and low permeability Provides a reliable technical support.