| 词条 | Wushaoling Tunnel |
| 释义 |
The Wushaoling Tunnel ({{zh|s=乌鞘岭特长隧道|t=烏鞘嶺特長隧道|p=Wūshāolǐng Tècháng Suìdào}}) is a 21.05 km dual-bore railway tunnel in Gansu, north-west China. The east-bound bore opened on 30 March 2006. The west-bound bore is expected to open in October 2006.[1] It was briefly the longest railway tunnel in China[2] until the opening of the 27.84 km Taihang Tunnel in late 2007. LocationLocated on the Lanzhou-Wuwei section of the Lanzhou–Xinjiang Railway, the tunnel has reduced the distance between Dachaigou and Longgou by 30.4 km.[1] Key to the "Eurasian Land Bridge",[2] the tunnel is part of the 3,651 km section linking Lianyungang on the East China Sea coast with Ürümqi in Northwest China.[3] Administratively, the tunnel is located within two county-level units of Wuwei Prefecture-level City. The eastern (actually, southeastern) portal is in Bairi Tibetan Autonomous County (a.k.a. Tianzhu Tibetan Autonomous County); the western (actually, northwestern) portal, in Gulang County. InfrastructureThe tunnel consists of two bores with centres separated by 40 m. It is designed to allow speeds of 160 km/h.[1] The tunnel travels through complex geology, involving four regional fault zones and soft rock. The New Austrian Tunnelling method was adopted as the construction technique. An elliptical cross-section (horseshoe shape) was used for the majority of the tunnel, with a circular section used in the geologically challenging Fault Zone No. 7.[4] The right (east-bound) bore was constructed first, while the left tunnel was a parallel drift with smaller diameter to be enlarged later. The gradient is mainly 1.1%. The Wuwei portal has an altitude of 2447 m, and the Lanzhou portal 2663 m. The maximum depth of the tunnel is 1100 m.[5] On 26 June 2003 Interfax reported that the total investment for the project was ¥ 7 billion ($845 million), that the project commenced construction in November 2002 and that it was scheduled to take six and a half years to complete. Also reported was that Chinese steel manufacturer Lingyuan Iron and Steel (Linggang) would provide 4,360 tons of steel products for the tunnel project.[6] Coordinates
References1. ^1 2 {{cite news| url=http://www.railwaygazette.com/news/single-view/view/10/intelligence-may-2006/| title=Intelligence| work=Railway Gazette International| date=1 May 2006| accessdate=4 June 2006}} 2. ^1 {{cite web| url=http://www.fsdi.com.cn/english/projects/wpics.aspx?ID=59| title=The Longest Railway Tunnel in China--Wushaoling Extra-Long Tunnel| date=26 December 2006}} 3. ^{{cite news| title=China opens Asia's longest land tunnel railway| work=The Press Trust of India Limited| publisher=Asia Pulse Pty Limited| date=31 March 2006}} 4. ^{{cite journal| last=Yang| first=J.S.|date=May–July 2006| title=Interactions of four tunnels driven in squeezing fault zone of Wushaoling Tunnel| journal=Tunnelling and Underground Space Technology| volume=21| issue=3–4| pages=359| doi=10.1016/j.tust.2005.12.176|display-authors=etal}} 5. ^{{cite journal| last=Liu| first=Zhichun|date=May–July 2006| title=Synthetical analysis on monitoring of Wushaoling railway tunnel| journal=Tunnelling and Underground Space Technology| volume=21| issue=3–4| pages=363–364| doi=10.1016/j.tust.2005.12.180 |display-authors=etal}} 6. ^{{cite news| title=Lingyuan Iron & Steel to Supply Steel Products for Asia's Longest Railway Tunnel| publisher=Interfax Companies & Commodities| date=26 June 2003}} 4 : Railway tunnels in China|Transport in Gansu|Tunnels completed in 2006|Buildings and structures in Gansu |
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