Abstract:
In order to realize the monitoring and early warning for outburst danger zone at the mining face, coal and gas outburst early warning technology and the construction of early warning criteria are studied. The determination of gas geology, daily prediction and gas emission early warning criteria and critical value in Licun Coal Mine is discussed and the early warning technology is used in heading faces affected by serious gas disaster in Licun Coal Mine. The Application of early warning technology results shows that the early warning platform can monitor the hazard and give the early warning when working face is close to hazardous area and gas abnormal effusing according to corresponding early warning criteria. Early warning results can effectively improve the monitoring effect in ahead of coal and gas outburst hazard zone and reduce the occurrence of coal and gas outburst accidents.