顶板走向高位钻孔瓦斯抽采效果数值模拟研究  

Numerical simulation study of gas drainage effect in roof to high drill

作　　者：常红[1] 张红鸽[1] 

机构地区：[1]太原理工大学,山西太原030024

出　　处：《技术与市场》2017年第9期1-4,9,共5页Technology and Market

摘　　要：针对马兰煤矿8号煤层工作面采取的高抽巷的抽采方式,存在施工工程量大,耗费投入多等存在的一系列问题,在马兰煤矿18308工作面采用了高位钻孔的抽采方式代替了高抽巷,同时利用FLUENT软件模拟了抽采后的效果,在多个参数上与高抽巷进行抽采效果对比。结果表明:采用高位钻孔的抽采方式,工作面的瓦斯浓度与上隅角瓦斯浓度均能够达标,能够满足18308工作面的正常生产需求。According to the pumping way of high pumping Lane adopted by No. 8 coal seam working face of Ma Lan coal mine,there exist a series of problems,such as large amount of construction project,cost and so on,in the 18308 working face of Ma Lan coal mine,the high level borehole was adopted to replace the high pumping lane,at the same time,FLUENT software was used to simulate the effect of pumping,the comparison of pumping efficiency with high pumping Lane on several parameters. The results show that the drainage by high level borehole,gas concentration in the gas concentration and the upper corner can be able to meet the 18308 standards,the normal production and demand.

关 键 词：高位钻孔 数值模拟 抽采效果 瓦斯运移 

分 类 号：TD712.6[矿业工程—矿井通风与安全]