马池煤矿煤与瓦斯突出危险工作面消突措施及评价分析  

Analysis on Outburst Elimination Measures and Evaluation on Coal Mining Face with Coal and Gas Outburst Danger in Potential in Machi Mine

作　　者：蒋继兰[1] 袁东升[1] 张子敏[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454003

出　　处：《煤炭工程》2011年第7期48-50,共3页Coal Engineering

摘　　要：鉴于马池煤矿11041工作面是煤与瓦斯突出危险工作面,在该工作面上采取了顺层钻孔预抽煤层瓦斯的防突措施,吨煤抽放钻孔量为0.16m/t,瓦斯预抽率达34.72%,采前残存瓦斯含量明显低于临界值,并采用单项指标法、综合指标法、残余瓦斯含量法、吨煤抽放钻孔量和煤层瓦斯预抽率对该工作面采前突出危险性进行评价,评价结论为无突出危险性,这为该工作面回采过程中制订安全技术措施提供了重要的科学依据。Due to No.11041 coal mining face was a coal mining face with coal and gas outburst danger in potential,the outburst prevention measures were conducted with the seam gas pre-drainage with boreholes applied in the seam of the coal mining face.The gas drainage borehole quantity per ton of coal was 0.16m/t,the gas pre-drainage rate reached at 34.72% and the residual gas content in the seam before the mining operation would be obviously lower than the critical value.The single item index method,the comprehensive index method,the residual gas content method,the gas drainage borehole quantity per tone of coal and the seam gas pre-drainage rate were applied to the evaluation of the outburst danger before the coal mining face operated.The conclusion of the evaluation that there would be no outburst danger in the coal mining face Therefore the conclusion could provide the important scientific basis to set up the safety technical measures for the coal mining process of the coal mining face.

关 键 词：抽放瓦斯 煤与瓦斯突出 消突评价 单项指标法 综合指标法 

分 类 号：TD713[矿业工程—矿井通风与安全]