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以刘庄煤矿120601工作面地质条件为背景,通过数值模拟及理论计算分析了深井薄煤层综采面矿压显现特征。并研究了采高与采深对工作面矿压显现的影响。研究结果表明,工作面超前支承压力峰值、采场顶板下沉量与采深成对数关系,随着采深的增大而增大,但增大幅度逐渐减小。而应力集中系数与采深成负对数关系。采高对支承压力峰值影响不大。顶板下沉量与采高成指数关系,随着采高的减小而减小。
Taking the geological conditions of 120601 working face of Liuzhuang Coal Mine as a background, the strata pressure characteristics of fully mechanized mining face in thin coal seam are analyzed by numerical simulation and theoretical calculation. And studied the effect of mining height and mining depth on mine pressure. The research results show that the peak pressure of working face lead support and the relationship between the amount of roof subsidence and the number of deep mining logarithms increase with the increase of mining depth, but decrease gradually. The stress concentration factor and mining depth into a negative logarithmic relationship. Mining height has little effect on the peak pressure of support. The relationship between roof subsidence and mining height index decreases with the decrease of mining height.