厚煤层综采工作面冲击矿压显现规律研究

Study on Rock-burst Behavior Law of Fully Mechanized Mining Face in Thick Coal Seam

本文以某矿15号煤层回采工作面为研究背景,分析并建立了回采工作面简化的“悬臂梁-砌体梁”结构模型,并对液压支架工作阻力进行力学分析;通过分析该矿回采工作面的冲击矿压大小的统计数据,得到该回采工作面的冲击矿压显现规律,并提出了合理的液压支架选型方案。

Taking the working face of No.15 coal seam in a certain mine as the research background,this paper analyzes and establishes a simplified"cantilever beam-masonry beam"structure model of the working face,and makes a mechanical analysis of the working resistance of the hydraulic support.Through analyzing the statistical data of rock burst in the working face of this mine,the law of rock burst behavior in the working face is obtained,and a reasonable scheme for selecting hydraulic supports is put forward.