掘进过程中的支护采用湿喷混凝土，3米厚的基底和穹拱衬砌采用浇注混凝土。

Wet sprayed concrete for supporting purposes during the drive, in situ concrete for the up to 3 m thick Base and for lining the vault.

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重点介绍了隧道湿喷钢纤维混凝土的施工技术与质量控制。

And primary emphasis is on the introduction of construction technique and quality control of wet-pipe spray steel fiber concrete in tunnel project.

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秦岭隧道采用了湿式喷混凝土（包括湿喷钢纤维混凝土和湿喷素混凝土）进行初期支护和永永支护，取得了良好的效果。

Wet shotcrete, including wet steel fiber shotcrete and wet plain shotcrete, has been adopted for the temporary and permanent lining of Qinling Railway Tunnel and good results have been obtained.

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