Tunnels or tunnelling
    1.
    发明授权
    Tunnels or tunnelling 失效
    隧道或隧道

    公开(公告)号:US3640076A

    公开(公告)日:1972-02-08

    申请号:US3640076D

    申请日:1970-06-09

    CPC分类号: E21D11/10

    摘要: A method of constructing a lined tunnel comprises the steps of excavating a short length of tunnel of internal diameter greater than the external diameter of the lining, erecting within the said length of tunnel a ring of three 120* lining segments, repeating the steps of excavating a short length of tunnel and erecting a lining ring within the short length, and pressing each successive ring into endwise engagement with the previously erected ring.

    摘要翻译: 构造衬砌隧道的方法包括以下步骤:挖掘内径大于衬砌外径的较短长度的隧道,在所述隧道长度内竖立三个120°衬砌段的环,重复挖掘步骤 短长的隧道,并在短长度内竖立一个衬里环,并将每个连续的环按压成与先前架设的环的端接。