摘要
根据热量平衡原理,结合易燃煤层自燃理论、巷道松动圈裂隙发育理论,在假设条件下,建立了煤体高温点位置与温度的反演推算模型,对工作面两巷13.1～67 m的重点探测区域内的高温点进行了反演计算;结合反演计算所得数据作出工作面两巷帮部和顶板3D曲线图,最终确定两巷40、50 m处为最易燃位置;最后在0409工作面回风巷进行了井下钻孔实测,验证了反演模型计算结果的正确性,为理论上精确分析巷道煤壁自然发火位置提供了新的思路与途径。
According to the heat balance principle, combined with the flammable coal spontaneous combustion theory, fractured roadway loose circle theory, under the assumption, a high temperature coal inversion point and the temperature calculation model of working face, two lane 13.1 to 67 m key point detecting high temperature region is inversed with calculated data to make inversion;working face two Lane side and roof 3D curve, the final two lane 40 m and 50 m is the most flammable position;in the last 0409 tailentry measured underground drilling, verify the calculation results of the inversion model.It provides a new idea and way for the accurate analysis of the spontaneous combustion position of the coal wall in the roadway.
作者
杨永辰
米万升
毛宏远
曹少方
YANG Yong-chen;MI Wan-sheng;MAO Hong-yuan;CAO Shao-fang(School of Mining and Mapping Engineering,Hebei University of Engineering,Handan 056038,China;Hebei Coal Resources Comprehensive Development and Utilization Collaborative Innovation Center,Handan 056038,China)
出处
《煤炭技术》
CAS
2019年第1期75-78,共4页
Coal Technology
基金
河北省科学技术研究与发展计划资助项目(10276910D)
关键词
煤炭自燃火源
定位反演模型
钻孔实测
最易燃位置
coal spontaneous combustion
inversion model
borehole measurement
the most flammable position
