China to build most complicated railway on mountainous Qinling

18:17, November 02, 2010      

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The construction of the Xi'an-Chengdu high-speed railway, which is China’s first railway that crosses the Qinling Mountains, is scheduled to begin at the end of 2010 after the feasibility research report on building the Xi'an-Jiangyou section of the railway was recently approved by the National Development and Reform Committee, according to the First Survey and Design Institute of China Railways (FSDI).

This high-level railway will start from Xi'an and pass through Shaanxi's Hanzhong, Sichuan's Guangyuan and Jiangyou where it will link with the Mianyang-Chengdu-Leshan special passenger railway. The railway will be 511 kilometers long.

There are as many as six super-long tunnels that are each more than 10 kilometers long, including the 16-kilometer-long Tianhuashan double-track tunnel. The group of tunnels crossing the Qinling Mountains will be built on a 25-degree, 46-kilometer-long slope, which poses a fresh-new challenge for Chinese construction workers to build a high-standard, advanced railway among mountainous areas. The four-year project is scheduled to be initiated at the end of 2010.

Photo taken on Jan. 17, 2007 shows the general view of the Zhongnan Mountains Tunnel in northwest China's Shaanxi Province. With a total investment of 3.2 billion yuan, the 18.02-kilometers-long tunnel, the longest in China will open for traffic on Sunday. [Xinhua Photo]

The FSDI is in charge of the general design of the railway and will also oversee the survey and design work for the 344-kilometer-long section of the railway within Shaanxi Province, which is the toughest section of the railway in terms of survey and design.

There will be 10 railway stations along the railway, including six new stations, three rebuilt stations and one existing station.

The double-track Xi'an-Chengdu railway will be electrically propelled with a designed speed of 250 kilometers per hour. The infrastructure for the railway will be built under the special passenger railway construction standards in order to leave room for possibly transforming the railway into a special passenger railway in the future.

After the construction of the railway is completed, its annual one-way transportation capacity may reach 70 million passengers. It will be a new railway passage crossing northwestern, central and southwestern China, and is significant to ease railway transportation tension, enhance the transportation quality, perfect the railway network and promote the coordinated regional economic and social development.

The project will pass through the Guanzhong Plain, Qinling Mountains, Hanzhong Plain and Daba Mountains, facing particularly complicated terrain. It will be a high-level railway with China's most complicated and distinctive mountainous terrain among all planned railways. The section of the railway crossing the Qinling Mountains will be 135 kilometers long, including 127 kilometers of tunnels.

By People’s Daily Online


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