• 某矿3225大巷总结巷道围岩变形规律提出了采底板巷道维修方法考察维修效果,具有一定借鉴意义

    In 3225a mine roadway as an example, summed up the roadway deformation law, proposed an inter-mining floor roadway maintenance methods, inspected the maintenance effect to a certain extent learn.

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  • 文章介绍了煤柱中确定巷道位置方法巷道维修措施

    This paper introduced methods to select tunnel position and maintain measures for the tunnel in small coal pillar.

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  • 大采巷道变形问题日益严重巷道需要多次维修增加支护成本安全难以保证

    The deep roadway deformation problem is becoming increasingly serious, much maintenance increases support costs and security is difficult to guarantee.

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  • 解决这个问题通过对不稳固巷道维修原理进行分析,总结适合巷道支护方法确保工程安全顺利进行。

    To settle such a problem, We summarized timbering methods suitable for such drifts by ensure projects can be carried through safely and smoothly.

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  • 解决这个问题通过对不稳固巷道维修原理进行分析,总结适合巷道支护方法确保工程安全顺利进行。

    To settle such a problem, We summarized timbering methods suitable for such drifts by ensure projects can be carried through safely and smoothly.

    youdao

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