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利用Mathematica软件研究了2101工作面底板应力分布规律。建立了底板破坏深度计算模型,对上煤层底板损伤进行了计算和分析。通过FLAC软件分析了不同错距下工作面围岩中应力分布情况,初步确定了合理的错距。通过钻孔窥视、工作面片帮冒顶统计、矿压观测等综合性手段对比研究了不同错距下顶板破坏情况、工作面矿压显现规律,最终确定了合理的错距。
Using Mathematica software, the stress distribution of floor of 2101 working face was studied. The calculation model of the failure depth of the floor is established, and the damage of the floor of the upper coal seam is calculated and analyzed. The stress distribution in the surrounding rock of work face with different staggering distance was analyzed by FLAC software, and the reasonable wrong distance was preliminarily determined. By drilling and peep-hole, the facetting roof-top statistics, rock pressure observation and other comprehensive means to compare the roof under different staggering conditions of failure, mining face pressure law, and ultimately determine a reasonable fault.