瓦斯抽采模块优化技术实践研究  

Practice research on optimization technique of gas drainage modules

作　　者：王林[1] 刘发义[2] 

机构地区：[1]河南理工大学安全学院,河南省焦作市454000 [2]山西晋煤集团赵庄煤业有限责任公司,山西省晋城市048000

出　　处：《中国煤炭》2014年第1期110-113,117,共5页China Coal

摘　　要：为了解决赵庄煤业在煤层预抽过程中出现的流量衰减快、预抽效果不理想的问题,基于现场试验,探讨了不同抽采模块对预抽效果的影响。结果表明采用100m×45m布置两排钻孔的抽采模块是适用于赵庄煤业的最优方案,抽采34d后即可将煤层瓦斯含量降低到8m3/t以下,而且煤巷掘进期间瓦斯不超限,具有较好的安全效益和经济效益。In order to solve such problems as fast flow depletion and bad pre-drainage effect during the gas pre-drainage in Zhaozhuang Mining Industry Company, the influences of different gas drainage modules on the pre-drainage effect were discussed. The results showed that the opti- mum drainage module is two lines of boreholes arranged in the area of 100 m × 45 m. After gas drainage for 34 days, the gas cotent in the seam decreased to below 8 m3/t, and the gas content did not exceed the limit during the coal roadway tunneling, achieving the relatively good safety and economic benefits.

关 键 词：瓦斯抽采 流量衰减 预抽效果 瓦斯含量 

分 类 号：TD712.6[矿业工程—矿井通风与安全]