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采用KJ21型矿山压力监测系统对某矿综放首采工作面矿压规律进行了监测。分析表明,此工作面支架循环末阻力曲线较平缓,一般在末阻力判据直线以下,压力值趋于2 800 kN左右,接近于工作面额定工作阻力3 200 kN。支架工作阻力基本呈正态分布状态,受力较合理。
KJ21 mine pressure monitoring system was used to monitor the strata behavior of the first fully mechanized top coal caving mining face. The analysis shows that the end-of-cycle resistance curve of this working face support is relatively flat, generally below the line of the end resistance criterion, and the pressure tends to about 2 800 kN, which is close to the rated working resistance of the working face of 3 200 kN. Bracket work resistance was normal distribution, the force is more reasonable.