Gaoligongshan Tunnel
Gaoligongshan Tunnel or Gaoligong Mountain Rail Tunnel[6] (Chinese: 高黎贡山隧道) is a 34.5 km (21.4 mi)[Note 1] tunnel between Nujiang Station and Longling Station on the Dali–Ruili railway in Yunnan, China.[4] It passes through the entirety of Longling County and then into Mangshi.[1] Upon completion, it will be the longest mountain railway tunnel in Asia.[5]
 Construction site at the end of tunnel | |
| Overview | |
|---|---|
| Line | Dali–Ruili railway |
| Location | Longling County, Yunnan[1] |
| Coordinates | 24°38′57.8″N 98°49′39.4″E |
| Status | Under construction |
| System | China Railway |
| Crosses | Gaoligong Mountains |
| Start | West bank of Nu River in Longling County[1] |
| End | Nanwazidi (南凹子地) in Longling County[2] |
| Operation | |
| Work begun | 1 December 2015[3] |
| Owner | China Railway |
| Technical | |
| Design engineer | China Railway Tunnel Group[4] |
| Length | 34.5 km[Note 1] |
| No. of tracks | Single-track railway[2] |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Operating speed | 140 km/h |
| Highest elevation | 2,340 m[2] |
| Lowest elevation | 640 m[2] |
| Water Depth | 1,155 m[5] |
| Grade | 23.5‰ (biggest)[2] |
The tunnel is the key project of Yunnan–Burma railway between Dali and Ruili.[4]
Construction started on 1 December 2015.[3] The tunnel boring machine "Colorful Cloud No.1"(Chinese: 彩云一号) began work on 28 August 2017.[7] The expected completion date for 1st phase is 31 May 2022, for a cost of RMB 3.628 billion[3] and 30 November 2025 for the 2nd phase.[8]
References
- China Railway Tunnel Group Dali–Ruili railway Project Manager (10 July 2016). 大瑞铁路高黎贡山隧道建设宣传片 [Promotional film of Dali–Ruili railway Gaoligongshan Tunnel Construction] (video) (in Chinese). Event occurs at 1minute 42seconds. Retrieved 30 July 2017.
中铁隧道集团承建的大瑞铁路保瑞段二标高黎贡山隧道，自怒江西岸横穿高黎贡山脉，跨龙陵县全境，进入德宏州芒市境内。
- China Railway Tunnel Group Dali–Ruili railway Project Manager the Second Division (9 April 2017). "中铁隧道集团有限公司大瑞铁路工程项目经理部二分部项目轨线材料招标公告" [Tender notice of trajectory material of China Railway Tunnel Group Dali–Ruili railway Project Manager the Second Division]. www.crecgec.com. 中铁鲁班商务网. Retrieved 31 July 2017.
- 刘馨蔚 (25 October 2016). "大瑞铁路高黎贡山隧道工程顺利推进" [Construction of Dali–Ruili railway Gaoligongshan Tunnel progressing well]. www.yn.xinhuanet.com. Xinhua Net. Archived from the original on 1 August 2017. Retrieved 31 July 2017.
- Office of Civil, Hydraulic and Construction Project of China Railway No.2 Group (5 July 2016). "大瑞铁路高黎贡山隧道施工方案暨长大深埋隧道建设方法专家咨询会在云南举行" [Expert consultation meeting of construction program of Dali–Ruili railway Gaoligongshan Tunnel and construction program of deeply-buried long tunnels held in Yunnan]. www.cae.cn. Chinese Academy of Engineering. Archived from the original on 3 September 2017. Retrieved 31 July 2017.
- "大瑞铁路高黎贡山隧道开工 长34.5公里系亚洲最长山岭铁路隧道" [Dali–Ruili railway Gaoligongshan Tunnel start construction, the length 34.5 km make it to be the longest mountain railway tunnel of Asia]. www.guancha.cn. China News Service. Retrieved 31 July 2017.
- "China to Construct Longest Railway Tunnel in Asia". www.chinatopix.com. Chinatopix.com. 13 May 2014. Retrieved 21 May 2018.
- "我国铁路第一长隧高黎贡山隧道进入全面施工阶段" [Gaoligongshan, the longest Tunnel of China, entering the comprehensive construction phase]. www.gov.cn. Xinhua News Agency. 28 August 2017. Retrieved 3 September 2017.
- https://awards.ita-aites.org/images/CTUC_conference/Gaoligongshan.pdf
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