深孔预裂爆破技术在短壁综采面初采中的应用

摘要

Based on the geological conditions of№22404 short-wall fully mechanized mining face in Shigetai Coal Mine, by using the methods of numerical simulation and field observation, the roof control effect of deep-hole pre-splitting blasting in initial mining was analyzed.The research shows that deep-hole pre-splitting blasting can damage the roof integrity effective-ly and realize the safety mining of short-wall fully mechanized mining face.The results can provide theoretical basis and en-gineering reference for the coal mines with similar conditions.%针对神东矿区石圪台煤矿22404综采短壁工作面，运用数值模拟试验及现场观测相结合的方法，对初采深孔预裂爆破法控制顶板效果进行了研究。研究表明：短壁综采工作面通过深孔预裂爆破技术，可以有效的破坏顶板完整性，使工作面两端头三角区顶板垮落步距缩短，避免了有害气体积聚，保证工作面通风流.，深孔预裂爆破技术可以实现短壁工作面的安全回采，同时也为类似条件的矿井提供理论依据与工程参考。