新元公司突出危险区域存在显著的瓦斯涌出异常现象,为分析此瓦斯涌出异常信息,给矿井突出防治工作提供参考,采用瓦斯涌出特征预警技术及系统对矿井生产过程中不同突出危险区域的瓦斯涌出特征进行分析。根据矿井情况和瓦斯涌出研究结果,通过"三率法"和现场跟踪验证,确定了2个瓦斯涌出特征指标,其临界值分别为0.8和0.6时具有较好的适应性。效果考察表明,所确定指标的预警突出准确率达79.7%、预警不突出准确率达100%,瓦斯涌出特征预警技术能准确反映工作面的突出危险性,在新元公司的应用效果良好。

There was an obvious abnormal gas emission phenomenon existed in the outburst danger area in Xinyuan Company.In order to analyze the abnormal inf ormation of the gas emission and to provide reference information to the mine outburst prevention and control work, gas emission feature early warning technology and system were applied to analyze the gas emission features of the different outburst danger area during the mine production process .According to the mine conditions an d the gas emission research achievements as well as the present gas emission advance technology, with the "three rate methods" and the site tracing verification, two e mission features indexes were determined and when the critical value was 0.8 and 0.6, the critical values could have good suitability.The effect investigation showed th at the early warning outburst accurate rate of the indexes would reach to 79.7%, the no outburst occurred rate with the early warning was 100%.The gas emission featu res early warning technology could accurately reflect the outburst danger of the coal mining face and the application effect in Xinyuan Company was good.

“十二五”国家科技支撑计划资助项目(2012BAK04B01)；国家重大基础研究发展计划(973计划)资助项目(2012CB724206)；