• 从而提出石圪节煤矿残留顶板岩层具有明显特征波动特征的基本顶载荷支架选型关键因素及综采回收矿井残留煤柱支架选型的依据。

    Thereby it can be seen that the load of Shi ge-jie mine coal pillar roof with sheet character and fluctuate character are the key factors of support selecting.

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  • 发明公开了种用于车辆支撑横梁,该支撑横梁具有A部分横梁部分。

    A support rail for a vehicle is disclosed that has an A-pillar portion and a roof rail portion.

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  • 视为中点支承弹性固结,将煤柱视为支座,形成了-煤柱系统

    The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof-coal pillar system.

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  • 揭示煤体边缘水平应力垂直应力峰值不耦合规律以及巷道顶应力峰值煤柱宽度不同而演化轨迹

    The study manifested the uncoupled pattern of the peak stresses in vertical and horizontal directions, as well as the stress evolution trace varying with pillar width.

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  • 阐述了哈拉沟煤矿主采煤层赋存特征,现场监测、现场调研手段分析了煤层开采、护煤柱尺寸地下水巷顶稳定性影响,为今后煤巷顶稳定性分类及合理支护提供依据。

    By taking the on-site monitoring and research as a tool, the influence of coal mining, coal pillar size and underwater on the roof stability of coal roadways is analyzed.

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  • 溶洞持续塌陷形成陷落

    The collapse continued formed karst collapse column.

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  • 控制事故防范冲击发生开采埋深较大孤岛煤柱工作面的重点难点

    Controlling roof accidents and preventing the occurrence of bursting underground pressure are the priorities and difficulties to mine deeper isolated pillar face.

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  • 文章就稳定性有关的普通顶、节理化顶、放顶、顶加固人工变形破坏等问题,岩石理论进行了分析讨论。

    With theory of rock beams, cutting roof, reinforcing roof, manual pillar deformation and failure, and obtains some kinds of knowledge.

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  • 采用发射声波云南大姚铜矿开采过程进行监测分析声彼仪对支撑顶的点柱进行监测;

    The panel mining process of Dayao Copper Mine, Yunnan was monitored and analysed with acoustic emission(AE)and acoustic wave (AW)methods.

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  • 本文提出了全新的综放工作面通风系统顶层瓦斯煤柱底层回风顺槽布置,具体放顶煤工作面顶排瓦斯巷位置改进

    This paper proposes a new working face ventilation system: top gas tunnel small pillar outside the bottom return air laneway layout, in other words, which is gas tunnel location evolution.

    youdao

  • 本文提出了全新的综放工作面通风系统顶层瓦斯煤柱底层回风顺槽布置,具体放顶煤工作面顶排瓦斯巷位置改进

    This paper proposes a new working face ventilation system: top gas tunnel small pillar outside the bottom return air laneway layout, in other words, which is gas tunnel location evolution.

    youdao

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