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| Simulation study on the law of mine pressure behavior in deep mine face |
| Lian Jiapeng |
| Lu 'an Chemical Industry Group Co., Ltd., Gucheng Mine, Changzhi 046000, China |
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Abstract In order to determine the initial weighting and periodic weighting step and the rationality of support selection of No.S1306 Face, the mining pressure law of working face was studied through theoretical analysis and numerical simulation. Based on the theory of composite beam, the initial weighting step of working face was 44.03 m, and the periodic weighting step was 15.75 m, which was consistent with the measured values. The plastic zone, vertical stress and displacement of working face in different advancing ranges were simulated by numerical simulation. It was determined that the first caving step of the main roof of the working face was 46 ~ 49 m, and the periodic weighting step was 11 ~ 13 m, which was in good agreement with the measured values, and the support resistance of the working face met the production requirements of the working face.
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| [ 1 ] 白雪斌. 浅析我国采场覆岩运动理论研究现状[ J ]. 科技资讯，2021，19（ 18 ）：28 - 30.
[ 2 ] 钱鸣高，石平五，许家林. 矿山压力与岩层控制[ M ]. 徐州：中国矿业大学出版社，2010.
[ 3 ] 蒋金泉，张开智. 综放开采矿震的成因及防治对策[ J ]. 岩石力学与工程学报，2006（ S1 ）：3 276 - 3 282.
[ 4 ] 郑玉春. 寺家庄煤矿15301大采高工作面矿压显现规律及支架适应性分析[ J ]. 煤矿现代化，2022，31（ 2 ）：51 - 54，50.
[ 5 ] 白雪斌. 多层坚硬顶板综放工作面矿压显现规律研究[ J ]. 煤炭技术，2022，41（ 3 ）：44 - 48.
[ 6 ] 赵信强. 汾源煤业综放工作面矿压显现规律研究[ J ]. 煤，2021，30（ 11 ）：50 - 51，62.
[ 7 ] 许 姣. 综放工作面矿压显现规律及液压支架选型研究[ J ]. 煤，2021，30（ 10 ）：42 - 44.
[ 8 ] 李云飞，解振华，杨龙龙. 综采工作面不规律生产期间矿压显现规律分析[ J ]. 陕西煤炭，2021，40（ 5 ）：14 - 16，25.
[ 9 ] 张 鹏. 水平工作面老顶初次来压步距计算及瓦斯抽放巷道位置确定[ J ]. 煤炭工程，2012（ 9 ）：80 - 83.
[ 10 ] 常 龙，田庆祝，周 伟. 煤矿开采过程中采煤工作面老顶初次来压步距及周期来压步距的计算方法[ J ]. 内蒙古煤炭经济，2013（ 10 ）：94 - 96. |
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