The first double line electrified railway in southern Shaanxi has been successfully opened with a design speed of 120 km / h

At 15:25 on December 27, 42096 trains slowly left Xixiang station, marking the completion of the second line of Yangpingguan Ankang Railway, the national and provincial key construction project, which is the first double line electrified railway connecting the south of Shaanxi.

reporter learned that the construction of Yangan second line was started in July 2015. It is a national class I electrified railway with a total length of 329.87km and a design speed of 120km / h. There are 71 tunnels and 174 bridges in the whole line. The total length of bridges and tunnels is 148.321km. The proportion of bridges and tunnels is as high as 45%. Among them, there are 3 super long tunnels with a length of more than 5km, 3 class I high-risk tunnels and 47 control projects 。 The planned annual transportation capacity is more than 120 million tons, which will exceed 160 million tons in the long term. The

Yangan second line is located at the south foot of Qinling Mountains. It is led from Yangpingguan station of Baocheng railway. It runs along Hanjiang River Valley to Hanzhong Basin, Xixiang and Shiquan, and Hanyin to Ankang station along Yuehe River Valley. The landform along the line changes greatly, and the geological conditions are extremely complex. It passes through four geomorphic units, i.e. Yangpingguan mianxi Daba Shanxi maimicang mountain low mountain canyon area, mianxi Yangxian Hanzhong Basin alluvial proluvial plain area, Yangxian gaoliangpu Low Mountain hilly area, gaoliangpu Ankang Yuehe terrace and hilly area. The construction is difficult and the safety risk is high. Yangan second line is distributed along both sides of Jialing River and Hanjiang River, passing through the habitat and water source of national first-class rare bird zhuq. It is necessary to control the impact of construction and operation on water source, water quality, environment and noise.

in order to ensure the smooth completion of the project, China Railway Xi'an Bureau Group Co., Ltd. organized China Railway 14th Bureau and other participating units to carry out one-time double line bypass construction for Yangpingguan Xiangshui section due to poor technical conditions of existing lines and heavy maintenance workload. For the construction of 101.48 km near the existing line, 18 temporary lines of 8.73 km from the new line to the old line, 4 temporary lines from Mianxian to mianxi, and 2 sections from Guandong to Ningqiang in Yangping, Xixiang to Shiquan in need of opening the new line to close the existing line, the reconstruction construction has effectively reduced the interference to the transportation, reduced the construction safety pressure, and ensured that the construction and transportation are correct. After the completion of the second Yangan line of

, 29 new stations have been opened, and the line has been put into operation, which has solved the problem of insufficient transportation capacity of Baoji Chengdu Railway. It is of great significance to give full play to the overall benefits of the road network in Southwest China, improve the transportation capacity of Southwest China and promote the economic development of Southern Shaanxi.