大倾角炮采工作面矿压显现规律研究

以富山煤业21051工作面为背景，对大倾角工作面矿压显现规律进行了实测研究，并对顶板周期来压进行了预测。结果表明，在工作面倾斜方向上顶板周期来压不同步，工作面两端来压步距大于工作面中部，平均来压步距6.73 m。根据顶板来压时单体支柱工作阻力的增阻情况，评价了工作面支柱的支护适应性，并提出提高工作面单体液压支柱初撑力或加强循环补液力度等措施，来改善工作面支柱的支护适应性。结合研究得出的工作面矿压显现规律，对工作面顶板周期来压进行了预测，预测结果得到了现场实际情况的验证，为矿井安全生产提供指导。

Study on law of strata pressure behavior in large inclined blasting mining face

Taking the 21051 coal mining face in Fushan Mine as the project background，the law of strata pressure behavior in the large inclined blasting mining face is researched by actual measurement，and the roof periodic incoming pressure is predicted.The results show that，in the tilt direction of the working face，periodic roof weighting are not synchronized，the pressure step in working face ends is more than the step in middle part of working face and the average pressure step is 6.73 m.According to the increasing resistance of the working resistance of the single prop when the roof is pressed，the support adaptability of the prop in the working face is evaluated，and measures such as improving the initial support force of the single hydraulic prop or strengthening the circulating fluid replenishment are put forward to improve the support adaptability of the prop in the working face.Combined with the ground pressure behavior law of the working face，the periodic incoming pressure of the working face roof is predicted，and the prediction results are verified by the actual situation in the field，which provides guidance for mine safety production.