摘要
为了提高钻孔卸压技术的卸压效果,运用理论分析、数值模拟与现场应用相结合的方法,对影响钻孔卸压效果的技术参数进行了设计。通过对FLAC模拟结果分析发现,钻孔直径和钻孔间距是影响钻孔卸压效果的重要因素,并得出了埋深1 000 m条件下的最佳钻孔直径与钻孔间距。在高煤公司3下1101工作面进行施工,取得了良好的卸压效果,保证了工作面的安全回采。
In order to improve the drilling technology of pressure relief pressure effect, with theoretical analysis, numerical simulation and field application of the method, the drilling technical parameters for the design of the effect was designed. Based on FLAC simulation, the results showed that the hole diameter and hole spacing was the important factors influencing the drilling pressure relief effect, and the best hole diameter and hole spacing was obtained under the buried depth condition of 1 000 m. In Gao Mine 1107 fully mechanized coal face, the technology obtained the good effect of pressure relief, which guaranteed the safety mining of working face.
出处
《煤炭与化工》
CAS
2014年第1期105-108,共4页
Coal and Chemical Industry
关键词
钻孔卸压
数值模拟
钻孔直径
钻孔间距
drilling pressure relief
numerical simulation
hole diameter, borehole spacing
