摘要
针对神木县何家塔煤矿50104工作面上隅角CO超限的问题,采用现场实验的方法,通过对104工作面附近的隔离煤柱进行钻孔测试,对工作面及其采空区埋设束管和温度传感器的方法,得出了隔离煤柱CO涌出在承压前后的规律,及工作面距采空区40 m内和40 m后的采空区CO浓度的变化特征。
In view of the upper corner CO transfinite probleme of 50104 working face in Shenmu Hejiata coal mine,using the method of field test,drilling through the test of isolated coal pillar in the vicinity of104 working face, the method of working face and goaf buried beam tube and a temperature sensor.Studied that the law of isolated coal pillar CO emission in the pressure before and after and the variation characteristics of CO concentration of mined-out area in working face goaf 40 meters and 40 meters after.
出处
《煤炭技术》
北大核心
2017年第8期115-117,共3页
Coal Technology
关键词
CO浓度
综采工作面
煤自燃
CO concentration
fully mechanized working face
coal spontaneous combustion
