深孔预裂爆破技术在石门揭煤中的应用

The Application of Deep Hole Presplitting Blasting Technology in Rock Crosscut Coal Uncovering

介绍将深孔控制预裂爆破增透卸压瓦斯治理技术应用到石门揭突出煤层中,通达对打钻对所揭煤层实施预裂爆破,使具有突出危险性煤层高聚的瓦斯压力与弹性潜能得到释放,煤与瓦斯突出预测指标降至安全值以内,实现安全快速揭煤,总结了该项技术在治理瓦斯和防突方面应用的可行性和有效性。

In the paper, it introduces the application of controlled presplitting blasting in deep hole to enlarge, leak and relieve gas treatment technology that is used in the coal seam of uncovering coal in crosscut. Through presplitting blasting for the drilling and uncovering coal, to make the high gas pressure in dangerous uncovering coal and stretch potential relieved, and to make the predicted uncovering index of coal and gas under the safe index, and to realize to uncover coal rapidly and in safety. This paper concludes this technology＇s practicality and affectivity used in the gas treatment and protection of gas rush.