• The shed-pipe advanced support that passes through soft cracked rock mass in tunnel construction is an effective pre-supporting method.

    超前棚支护隧道施工穿越软弱破碎围岩一种有效的预支护方法。

    youdao

  • The shed-pipe advanced support that passes through soft cracked rock mass in tunnel construction is an effective pre-supporting method.

    超前棚支护隧道施工穿越软弱破碎围岩一种有效的预支护方法。

    youdao

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