西安安康铁路秦岭隧道进口工区施工技术及成果

CONSTRUCTION TECHNIQUES AND ACHIEVEMENTS AT ENTRANCE WORKING SECTION OF QINLING TUNNEL ON XI'AN-ANKANG RAILWAY LINE

西康线秦岭隧道是我国最长的铁路隧道 ,首次采用全断面掘进机施工。本文根据施工实际 ,对秦岭隧道进口工区的施工情况和施工技术作了详细介绍 ,提出了若干可供讨论的初步认识。并认为在较短工期内 ,施工长 2 0 km左右的隧道 ,已不存在大难点 ,建议有关部门组织建设、设计、施工、监理、科研等单位认真总结经验 ,赶上世界先进水平。

The Qinling Tunnel on Xi'an Ankang railway line is the longest railway tunnel in China.This tunnel was constructed by using the full face tunnelling machine for the first time in China.Based on the construction practices,the situation and the construction techniques at the entrance working section of Qinling Tunnel are introduced in detail,and several preliminary understandings which may be provided for discussion are proposed.It is recognized that there would be no big difficulty for constructing tunnel with nearly 20 km length in rather short working period.And,it is suggested that the corresponding governments should organize the departments of construction,design,engineering,supervision,science and research,etc,for summarizing the expriences,so as to catch up with the advanced level in the world.