• 介绍了断面初期支护参数、由区间标准断面转换三连拱隧道工法工程效果

    Primary supporting parameters, construction method transformation from the normal route tunnel to the three-connected-arch tunnel, and engineering practice effects are introduced respectively.

    youdao

  • 介绍了断面初期支护参数、由区间标准断面转换三连拱隧道工法工程效果

    Primary supporting parameters, construction method transformation from the normal route tunnel to the three-connected-arch tunnel, and engineering practice effects are introduced respectively.

    youdao

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