综采放顶煤支承压力及合理采放比数值模拟研究

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英文篇名：Numerical Simulation Study on Fully Mechanized Top Coal Caving Pressure Support and Reasonable Caving Ratio 作者：乔懿麟 ; 于水 ; 王金东 ; 丁国峰 英文作者：QIAO Yi-lin;YU Shui;WANG Jin-dong;DING Guo-feng;Nation Engineering Research Center of Green Safe and Efficient Coal Mining;Shaanxi Coal and Chemical Technology Institute Co., Ltd.; 关键词：综采放顶煤 ; 支承压力 ; 合理采放比 英文关键词：fully mechanized top coal caving;;pressure support;;reasonable caving ratio 中文刊名：MTJS 英文刊名：Coal Technology 机构：煤炭绿色安全高效开采国家地方联合工程研究中心;陕西煤业化工技术研究院有限责任公司; 出版日期：2019-02-10 出版单位：煤炭技术 年：2019 期：v.38;No.302 语种：中文; 页：MTJS201902019 页数：3 CN：02 ISSN：23-1393/TD 分类号：55-57

摘要

煤壁前方煤体上超前支承压力的影响范围,应力峰值直接影响综放开采顶煤的破坏程度,研究超前支承压力的规律有利于顶煤自然放出,从而提高工作面采出率。建立不同采放比模型,研究不同采放比条件下支架前方空顶顶板的位移量,从而确定有利于顶板管理的最优采放比。
        The influence range and stress peak of the forward bearing pressure in front of coal wall directly impact the degree of destruction of fully mechanized top coal. The study on the rule of leading support pressure is conducive to the natural release of top coal, thus improving the production rate of working face. Building a different set of models,the displacement of the front roof of the bracket is studied under different conditions of different mining and release ratio, so as to determine the optimum ratio of the optimal production of roof management.

引文

[1]陈忠辉,谢和平,王家臣.综放开采顶煤三维变形破坏的数值分析[J].岩石力学与工程学报,2002(3):309-313.
    [2]刘毅,闫洁伦,杨启楠.综放工作面围岩活动规律数值模拟[J].辽宁工程技术大学学报:自然科学版,2010,29(3):389-391.
    [3]王家臣,仲淑姮.我国厚煤层开采技术现状及需要解决的关键问题[J].中国科技论文在线,2008.11,3(11):829-834.