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在西安～安康铁路线上,我国目前最长的单线越岭隧道——秦岭隧道,已于1994年12月18日先行开工。 秦岭隧道位于陕西境内,西安～安康线青岔车站和营盘车站之间。隧道在此地穿过北秦岭。秦岭岭脊大致成东西分布,主峰海拔2802米,隧道进出口与主峰高差约2000～1800米。 秦岭隧道由两座单线越岭隧道组成,其中Ⅰ线隧道全长18.448公里,Ⅱ线隧道全长18.457公里,埋深达1190米,是我国目前最长的单线越岭隧道,据资料记载,截止到1989年,在世界同类隧道中居第7位,其埋深是全路隧道之冠。 两座隧道基本平行,间距约30米。洞内坡度也基本相同,进洞以11‰上坡,长约14.7公里,然
In Xi’an ~ Ankang railway line, the longest single-lane cross-country tunnel in our country, the Qinling Tunnel, was started on December 18, 1994. Qinling Tunnel is located in Shaanxi Province, Xi’an ~ Ankang line between Greenfinch Station and Yingpan Station. The tunnel passes through North Qinling here. Qinling ridge roughly into the east-west distribution, the main peak 2802 meters above sea level, the tunnel entrance and exit with the main peak elevation of about 2000 ~ 1800 meters. The Qinling Tunnel consists of two single-line cross-country tunnels, of which the I-line tunnel covers a total length of 18.448 kilometers and the second-line tunnel covers a total length of 18.457 kilometers and a depth of 1190 meters. It is the longest single-lane cross-country tunnel in our country. According to the data, By 1989, it ranked the seventh in the same type of tunnels in the world, and its depth was the highest of all tunnels. The two tunnels are basically parallel with a distance of about 30 meters. Cave slope is basically the same, into the hole to 11 ‰ uphill, about 14.7 km, of course