• The paper reviews the design and construction of the long inclined shafts, the deep vertical shaft, the parallel adit and the access adit for the tunnel.

    文章介绍越岭隧道斜井竖井、平导、横洞设计施工情况。

    youdao

  • The paper reviews the design and construction of the long inclined shafts, the deep vertical shaft, the parallel adit and the access adit for the tunnel.

    文章介绍越岭隧道斜井竖井、平导、横洞设计施工情况。

    youdao

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