基于瓦斯抽采穿层钻孔的瓦斯地质勘查研究  

Study of Gas Geological Exploration Based on Crossing Holes of Gas Drainage

作　　者：陶涛[1] 关金锋[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000

出　　处：《中国煤炭地质》2014年第6期26-29,共4页Coal Geology of China

摘　　要：针对回采工作面煤与瓦斯突出事故多发于煤厚变化带和隐伏小构造附近,研究了利用大量瓦斯抽采钻孔探明工作面瓦斯地质信息的技术途径。结合试验煤层工作面抽采钻孔施工设计,对抽采钻孔信息进行处理、建立数学模型,利用计算机作图软件对煤层厚度变化规律、隐伏小断层立体呈现,从而达到利用穿层抽采钻孔探明工作面前方隐伏瓦斯地质信息的目的。试验结果表明,工作面煤厚变化部位、遭遇断层位置与预测结果基本一致,回采阶段未出现瓦斯异常情况。According to the phenomenon that coal and gas outburst accident mostly strike in coal seam where thickness change belt or minor geological structures grown, this paper studied the technical way of ascertaining gas geology information based on a large number of gas drainage holes implemented in coal seam. With analyzing the information of gas drainage holes of the experiment coalface, we build the mathematical model of gas drainage holes, and rendered the law of coal seam thickness changing and the minor concealed fault three-dimensionally by computer drawing software. Through on-site validation, it was basically consistent with the forecasting re-sults that coal seam thickness changes position and fault location, and gas drainage rate was greatly increased and gas emission of ex-traction stage was normal.

关 键 词：穿层钻孔 瓦斯地质 数学模型 煤厚变化 小断层 

分 类 号：TD712[矿业工程—矿井通风与安全]