STUDY ON THE METHOD FOR FORECASTING DANGEROUSNESS OF COAL FACE AND HEADING FACE OUTBURST BY TWO TEMP

• 作 者: 王宏图 鲜学福 魏福生 戴小平
• 出 处: Journal of Coal Science & Engineering(China)
• 发表日期: 1998年02期
• 关键词: FACE seconds

In line with the sensitivity of coal drillings temperature and coalbed temperature to the dangerous zone of coal and gas outburst, two temperature sensitive indexes (△Tm, △tm) for forecasting dangerousness of coal face and heading face outburst are defined, and deal with the foundation on drillings and coalbed temperatures used as sensitive indexes and the principle and method of determining drillings and coalbed temperatures. On the basis of this, we put forward the method for forecasting dangerousness of coal face and heading face outburst by two temperature sensitive indexes and determine the critical values of two temperature sensitive indexes (△Tm= 5.5℃, △tm = 4.5℃) by in-situ observation and requirement for determining sensitive index.

In line with the sensitivity of coal drillings temperature and coalbed temperature to the dangerous zone of coal and gas outburst, two temperature sensitive indexes (ΔTm, Δtm) for forecasting dangerousness of coal face and heading face outburst are defined, and deal with the on the basis of this, we put forward the method for forecasting dangerousness of coal face and heading face outburst by two temperature sensitive indexes and determine the critical values ​​of two temperature sensitive indexes (ΔTm = 5.5 ° C, Δtm = 4.5 ° C) by in-situ observation and requirement for determining sensitive index.