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费尔艾那隧道覆盖层厚达1200m。长19058m,中间无掘进工作面。隧道采用一台全断面掘进机掘进和单层喷混凝土衬砌结构。过去采用这两种方法之一或相互结合起来常常能满足要求。瑞士东部的费尔艾那隧道采用所有四种方法都是隧道施工技术领先的工艺。在这里取得的经验将有助于圣·哥达新的山麓隧道和勒奇山新的山麓隧道的设计工作。
Fairy that tunnel cover thickness up to 1200m. Long 19058m, the middle without heading face. Tunnel using a full-face boring machine heading and single-shotcrete lining structure. In the past, one of these two approaches or a combination of them often meets the requirements. All four of Fernshina’s tunnels in eastern Switzerland are leading technology in tunnel construction. The experience gained here will contribute to the design of the new foothills of Saint Gothard and the new foothills of Lech.