摘要
通过现场测定石门揭穿时的各煤层瓦斯压力,根据矿井地质条件和以往生产现状,结合突出敏感性综合指标及临界值,进一步优化了适合园子沟矿井的石门揭煤工艺。优化后的石门揭煤方案不再施工瓦斯释放钻孔,减少了施工费用,提高了掘进速度。
According to the mine geological condition and the previous production situation,by measuring gas pressure of each coal seam,the process of rock cross-cut coal uncovering for Yuanzigou Coal Mine was further optimized combined with the comprehensive index and its critical value of outburst sensibility. After the scheme optimization of rock cross-cut coal uncovering,the gas releasing drill-hole was canceled,the construction cost was reduced and the tunneling speed was improved.
出处
《陕西煤炭》
2017年第4期84-86,共3页
Shaanxi Coal
关键词
石门揭煤
瓦斯
钻孔
优化
rock cross-cut coal uncovering
gas
drill-hole
optimization
