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首页> 外文期刊>Journal of Mines, Metals & Fuels >Research and application of technology of gob-side entry retaining by roof cutting pressure relief in Jiaozishan coal mine
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Research and application of technology of gob-side entry retaining by roof cutting pressure relief in Jiaozishan coal mine

机译：胶井煤矿屋顶切削压力救济扶手侧进入技术的研究与应用

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摘要

Combined the mechanism of gob-side entry retaining by roof cutting pressure relief and the geological conditions of Jiaozishan coal mine, the influence of gob-side entry retaining from the depth of blasting bore in the process of roof cutting pressure relief was studied by the method of FLAC3D numerical simulation. When the depth of blasting bore was 4m, it was most significant that the surrounding rock stress of roadway transferred to the roadway deep; meanwhile, the surrounding rock deformation was also the minimum. And the result was applied to an industrial practice in the intake airflow roadway of the 9706 working face. When the working face was mined, the surrounding rock deformation was basically identical between the coal- side entry in front of the working face and the gob-side entry behind the working face, which met the requirements of retaining roadway and production next working face. It successfully reduced the difficulty of protecting roadway and the loss of coal pillar, and achieved remarkable economic and social benefits.
机译：结合屋顶切割压力释放的胶木侧进入的机理和胶山煤矿的地质条件，研究了屋顶切削压力浮雕过程中爆破孔深度的影响FLAC3D数值模拟。当爆破孔的深度为4米时，最重要的是，巷道的周围岩石胁迫被转移到巷道深处;同时，周围的岩石变形也是最小的。结果应用于9706工作面的进气气流道路的工业实践。当采煤时，周围的岩石变形基本上与工作面前面的煤侧进入和工作面后面的凝球侧入口之间相同，这符合沿着巷道和生产下一面的要求。它成功地降低了保护巷道的难度和煤柱的损失，并取得了显着的经济和社会效益。

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  • 来源
    《Journal of Mines, Metals & Fuels》 |2018年第3期|共7页
  • 作者

    GUO HONGJUN; JI MING; ZHANG KUN; WANG HUIQIN; LIANG AOXIANG;

  • 作者单位

    Key Laboratory of Deep Coal Resource Mining Ministry of Education of China School of Mines China University of Mining &

    Technology Xuzhou 221 116 China;

    Key Laboratory of Deep Coal Resource Mining Ministry of Education of China School of Mines China University of Mining &

    Technology Xuzhou 221 116 China;

    Key Laboratory of Deep Coal Resource Mining Ministry of Education of China School of Mines China University of Mining &

    Technology Xuzhou 221 116 China;

    Key Laboratory of Deep Coal Resource Mining Ministry of Education of China School of Mines China University of Mining &

    Technology Xuzhou 221 116 China;

    Key Laboratory of Deep Coal Resource Mining Ministry of Education of China School of Mines China University of Mining &

    Technology Xuzhou 221 116 China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 矿业工程;
  • 关键词

    Roof cutting pressure relief; gob-side entry retaining; numerical simulation; surrounding rock control; ground pressure monitoring;

    机译：屋顶切割压力释放;凝胶侧进入保留;数值模拟;周围岩石控制;地压监测;

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