The Third Engineering Co., Ltd. of China Railway 21st Bureau Group insists on development by science and technology and quality, and has built a large number of influential large-scale engineering projects, which can independently undertake the construction of high, difficult, dangerous, sharp, large and new engineering projects, especially in the construction of long tunnels, bridges and extra-large bridges. The main representative projects are:
The world's highest tunnel-the Qinghai-Tibet Railway Wind Volcano Tunnel; Tianshengqiao Tunnel of Nanning-Kunming Railway, the first plateau gas tunnel in China; The tunnel with the highest gas content in China railway-Faer tunnel of Shuibai railway; China's first railway tunnel in desert area-Shahalamo Tunnel of Shen Yan Railway; Huayingshan Tunnel, the longest highway gas tunnel in China; Two-way eight-lane Yabao Tunnel on Nanping Expressway in Shenzhen, Guangdong; The largest tunnel in the west-Dahongtian Tunnel of Anchu Expressway in Yunnan; Waizuishan Tunnel, the widest tunnel in the west of Shang Jie Expressway: Beitoukeng multi-arch tunnel of Fujian Longchang Expressway; Shuangfeng extra-long tunnel of Zhu Yong Expressway in Zhejiang Province; Xujialiangzi Tunnel of Pan Xi Expressway in Sichuan; Longxi Gas Tunnel of Du Wen Expressway in Sichuan.
-Xifengtu Bridge on the Qinghai-Tibet Line, the highest railway bridge in China; The second Tiansheng Bridge of Nankun Railway, the first continuous rigid frame cantilever bridge with high piers in domestic railway trunk lines; Ganjingkou Bridge in Zhongxian County, known as the "First Bridge in Three Gorges Reservoir Area"; Nanjing Qixia Bridge, the widest tied arch bridge in China; The first bridge of the Nujiang River on the border between China and Myanmar-Yunnan Fugong Nujiang Bridge; The first double-amplitude synchronous level crossing bridge in China-Chumi 1 Bridge of Guizhou Chongzun Expressway; Zhejiang Jinliwen Expressway-Shawan Deep Sea Yangtze River Bridge; Fujian First Gao Qiao-Longchang Expressway crosses Lingdong Bridge.
—— Gansu Yin Da Diversion Tunnel 14, 32km, fuzhou-xiamen railway Passenger Dedicated Line, Qingdao Metro, Shenzhen Metro, Chongqing Jiangbei Airport, Sichuan Jiuhuang Airport, Guangyuan Airport, etc., which won the second prize of National Science and Technology Progress Award and the special prize of Gansu Science and Technology Progress Award.
Huayingshan Tunnel won the National Excellent Project in 2002, Zhan Tianyou Award in 2003, and the "Tianfu Cup" gold medal in Sichuan Province. Daqin Railway was awarded 1995 National Excellent Project; Nanjing New Airport Expressway won the "Luban Award"; The first phase project of Daqin Railway won the silver prize of national high-quality project; The Luanhe River Bridge of Daqin Railway won the first prize of the Ministry of Railways for quality engineering; Xibao Expressway won the high-quality project in Shaanxi Province; Baoji-chengdu railway Quanjiahe Bridge was rated as the first new railway bridge in China by the Ministry of Railways. The Yanmen Xinzhuang Tunnel of Dayun Expressway won the highest architectural quality award in Shanxi Province in 2004-"Water Divider Cup"; Yunnan Anchu Expressway Project won the Silver Award of National Engineering Quality Award in 2007.
In recent years, China Railway 21st Bureau Group Third Engineering Co., Ltd. has improved its internal mechanism through enterprise restructuring, and its competitiveness has been continuously improved. It has been awarded the title of "honoring contracts and keeping promises" in Shaanxi Province for six consecutive years. 1999 was awarded "National Excellent Construction Enterprise" by China Enterprise Management Association; 1998 passed the ISO9002 standardized quality system certification; 1998 was awarded "provincial civilized unit" by Shaanxi province; In 2000, it was rated as "provincial civilized unit pacesetter"; In 2003, it was awarded the "Home of Model Workers" by the All-China Federation of Trade Unions; In 2005, it won the sixth "National Excellent Unit for Equipment Management of Construction Enterprises"; In 2007, it was awarded the titles of "National Advanced Unit for Open and Democratic Management of Factory Affairs" and "National Unit for Keeping Contracts and Paying Attention to Credit" respectively. It has been rated as "excellent leading group" and "top ten party organizations" by China Railway Construction Corporation for many times; The Fenghuoshan Tunnel Team won the "National May 1st Labor Award".
Address: Third Company of China Railway 21st Bureau Group, Yingbin Avenue, Xianyang City, Shaanxi Province
Postal code: 7 12000
Tel: 029-33784008
Fax: 029—3376 1739