矿山开采常见顶板事故--qsf999的安全生产小屋

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矿山开采常见顶板事故 | 2011-9-26 10:20:00

矿山开采常见顶板事故

    （1）顶板事故；
    （2）压垮型冒顶；
    （3）复合顶板推垮型冒顶；
    （4）金属网下推垮型冒顶；
    （5）漏垮型冒顶；
    （6）冲击推垮型（砸垮型）冒顶。

By:qsf999 | 阅读全文 | 回复(12) | 引用通告 | 编辑

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Re:在漫画中识别身边的违章 | 2016-10-23 15:12:23

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Re:在漫画中识别身边的违章 | 2016-10-20 19:52:31

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Re:在漫画中识别身边的违章 | 2016-10-19 2:18:36

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