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Nanning–Kunming high-speed railway

From Wikipedia, the free encyclopedia
Railway line in China
Nanning–Kunming high-speed railway
南昆客运专线
Overview
StatusOperating
LocaleGuangxi andYunnan
Termini
Stations22
Service
TypeHigh-speed rail
Operator(s)China Railway High-speed
History
Opened(Nanning-Baise) December 11, 2015
(Baise-Kunming) December 28, 2016
Technical
Line length709.518 km (441 mi)
Number of tracks2
Track gauge1,435 mm (4 ft 8+12 in)standard gauge
Minimum radius4500 m
Electrification50 Hz, 25,000 V
Operating speed250 km/h (155 mph)
Maximum incline(Nanning-Baise) 12‰
(Baise-Kunming) 9‰
Route map

Nanning–Kunming high-speed railway
Simplified Chinese南昆客运专线
Traditional Chinese南昆客運專線
Transcriptions
Standard Mandarin
Hanyu PinyinNán Kūn Kèyùn Zhuānxiàn

Nanning–Kunming high-speed railway (formerly known as the Yunnan–Guangxi high-speed railway[1]) is a high-speed railway connectingNanning andKunming, respectively the capitals of theGuangxi Zhuang Autonomous Region andYunnan Province. It has a total length of 715.8 km (444.8 mi) of electrified double-track railway, built to the Grade 1 standard. Positioned as part of China's "long-term railway network plan", to improve the layout and the development of South-Western China with critical infrastructure, it was Yunnan Province's first high-speed transport corridor to the sea. With future Pan-Asian railways toLaos,Thailand andVietnam planned or under construction, this railway will be seen as a crucial link between the economic powerhouse of thePearl River Delta Economic Zone andIndochina under theOne Belt-One Road initiative.

History

[edit]
  • December 27, 2009 – Construction of the Nanning–Kunming high-speed railway started.
  • June 20, 2011 – Xiaotuanshan tunnel breakthrough.[2]
  • October 2015 – Phase 1 from Nanning to Baise completed construction and testing began.[3]
  • December 11, 2015 – Phase 1 opened and operations from Nanning to Baise section commenced, with CRH2A trains.[4]
  • December 28, 2016, Phase 2 opened and operations from Baise to Kunming section commenced.[5]

Route

[edit]

Construction started on December 27, 2009, with the first phase from Nanning toBaise opening on December 11, 2015. It saw 17 new stations constructed, with three more stations being renovated. Bridges and tunnels account for total length of 500 kilometres (310 mi). Built with a total investment of nearly 90 billion RMB, it was expected that the construction period would have a duration of six years.[6] Total length of the project was 709.518 km (440.874 mi), of which 274.83 km (170.77 mi) was in Guangxi Zhuang Autonomous Region, and 432.183 km (268.546 mi) within Yunnan Province.

Starting atNanning'sXixiangtang District the railway travels north-west throughLong'an County to Baise'sPingguo County,Tiandong County andTianyang County before reachingBaise urbanYoujiang District itself. After this, the second phase of the route goes westward across Youjiang District into Yunnan Province'sFuning County,Guangnan County andQiubei County inWenshan. Turning north-west again, the line crossesMile City inHonghe. Now progressing northwards, the line enters Kunming'sShilin Yi Autonomous County before cutting acrossYuxi'sChengjiang County before re-entering Kunming throughYiliang County.Chenggong District and terminating in theGuandu District.

Nanning–Baise section

[edit]
  • Railroad Grade: I level
  • The number of main lines: Double
  • Limiting gradient: 12‰
  • Maximum speed: 250 km/h
  • Minimum curve radius: Usually 5500 m, 4500 m difficult regions
  • Type of traction: Electrical
  • Rolling Stock: EMU
  • Traction Quality: 4000 t
  • Effective platform length: 650 m
  • Block Type: Automatic Block

Baise–Kunming section

[edit]
  • Railroad Grade: I level
  • The number of main lines: Double
  • Limiting gradient: Baise to Kunming 9‰, afterburner slope 18.5‰; Kunming South to Shilin Banqiao partial 23.5‰
  • Maximum speed: 200 km/h (reserved 250 km/h)
  • Minimum curve radius: Usually 5500 m, 4500 m difficult regions
  • Type of traction: Electrical
  • Rolling Stock: EMU
  • Traction Quality: 4000 t
  • Effective platform length: Baise to Shilin Banqiao 880 m, 650 m Shilin Banqiao to Kunming South
  • Block Type: Automatic Block

Stations

[edit]

Kunming South,Jingkai,Yangzong,Shilin West,Mile,Xinshao,Hongshiyan,Puzhehei,Zhulin,Guangnan,Bailazhai,Funing,Bo'ai,Yangwei,Baise,Tianyang,Tiandong North,Pingguo,Long'an East,Nanning West andNanning

References

[edit]
  1. ^为满足大南宁发展需要申请铁路站点更名坛洛站将更名为南宁西站.Guangxi News. 2015-08-21.[permanent dead link]
  2. ^"云桂铁路小团山隧道贯通". 2011-06-20. Archived fromthe original on 2015-12-22. Retrieved2015-12-14.
  3. ^"南昆客专10月1日起联调联试 南宁至百色运行时间将缩短至一个半小时". 2015-08-21.Archived from the original on 2015-12-22. Retrieved2015-12-14.
  4. ^"南昆客专南百段开通 南宁-百色动车二等票82.5元". 广西新闻网. 2015-12-11.Archived from the original on 2017-11-07. Retrieved2015-12-11.
  5. ^"云南至广西铁路昆明至百色段将开通运营". China News Service. 2016-12-25.Archived from the original on 2016-12-26. Retrieved2016-12-28.
  6. ^"云桂铁路开工建设". 2009-12-27.
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