缓倾斜严重突出煤层快速揭煤优化研究  

Research on Optimization of Fast Exposing Gently-inclined Serious Outburst Coal Seam by a Crosscut

作　　者：王建[1,2] 张荻 李正刚 

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [3]天水金泉矿业,陕西西安710000

出　　处：《矿业安全与环保》2015年第6期80-82,共3页Mining Safety & Environmental Protection

摘　　要：为了提高缓倾斜严重突出煤层的揭煤效率,采用缩短揭煤巷道距离、水力压裂增透结合底板穿层钻孔预抽的方法,优化揭煤步骤.现场应用表明,该方法可以减少2次区域验证次数,减少施工9～24个钻孔,揭煤时间平均缩短5.0～15.4d,费用减少50%,实现了安全快速石门揭煤.In order to improve the efficiency of exposing the gently-inclined serious outburst coal seam by a crosscut, the steps of exposing the outburst coal seam by a crosscut were optimized by adopting the measures of shortening the distance of the roadway exposing the outburst coal seam, gas permeability enhancement by hydraulic fracturing and gas pre-drainage by floor crossing holes. The site application showed that this method can reduce two regional verifications, reduce the drilling construction of 9~24 holes, the average time for exposing the outburst coal seam was shortened by 5. 0~15. 4 d and the costs were reduced by 50%, as a result, the fast exposing outburst coal seam by a crosscut was realized.

关 键 词：缓倾斜突出煤层 石门揭煤 快速 工艺优化 

分 类 号：TD82[矿业工程—煤矿开采] TD712[矿业工程—矿山开采]