• The article analysed national situation of bolt shotcrete and wire in soft rock, based on theory of broken-rock circle, concluded the relation of broken-rock circle and soft support.

    本文分析了岩巷支护研究国内外现状围岩松动理论研究为基础得出围岩松动圈岩巷道支护的关系

    youdao

  • The article analysed national situation of bolt shotcrete and wire in soft rock, based on theory of broken-rock circle, concluded the relation of broken-rock circle and soft support.

    本文分析了岩巷支护研究国内外现状围岩松动理论研究为基础得出围岩松动圈岩巷道支护的关系

    youdao

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