Yijun tunnel of West Extension high-speed railway is located in Yintai district and Yijun County, Tongchuan City, Shaanxi Province.
Emergency notice: these people need to report the latest 𞓜 Tongchuan Municipal People’s government announced that 29 passenger cars in Tongchuan suffered a sudden disaster! The monitoring recorded a terrible scene…
Up to now, 94 of the 186 construction sites along the line have been started, with more than 7000 people entering the site, with a cumulative investment of 1.51 billion yuan.
The 30 minute era from Xi’an to Tongchuan is coming! Wonderful recommendation in the past – Tongchuan residential construction reminder: don’t buy qianjinfang, Zhengyang Trade City, Thames residence, Tongchuan hotpot heroes in Shanghe county (Shuian Paris).
At present, the entrance and exit of Yijun tunnel of West Extension high-speed railway and four inclined shafts have all been constructed into the tunnel.
Xianhezhuang will launch new dishes and eat a variety of benefits first! Tongchuan released a group of cadres to publicize the continuous rainfall in Tongchuan before taking office! In moderate rain, heavy rain and rainstorm, Tongchuan Shanshui Yating parking charge is suspected of tax evasion.
With a total length of 17.5km, it is designed as a single tunnel and double track tunnel.
After the line is completed and put into operation, the operation time from Xi’an to Yan’an will be greatly shortened, only about 1 hour, which will help the old revolutionary base areas overcome poverty, promote the western development strategy, further improve and optimize the layout of the national high-speed railway network It is of great significance to enhance the regional advantages of Shaanxi Province and the hub status of the national railway network.
There are potential safety hazards such as landslide, collapse and large deformation.
At present, there are motor cars from Xi’an to Yan’an, but the fastest whole journey takes more than 2 hours.
The longest tunnel in the whole line has officially entered the tunnel construction stage! On the morning of September 17, 2021, at the entrance section of Yijun tunnel of Xi’an-Yan’an high-speed railway, with the roar of several machines, the constructors carried out the installation of pipe shed guide pipes and site leveling in an orderly manner.
The West Extension high-speed railway of Yan’an railway station is an important part of the national eight vertical and eight horizontal high-speed railway network (Yinhai haikou high-speed railway channel).
Does Xi’an Metro Line 10 extend to Tongchuan? Shaanxi Provincial Development and Reform Commission officially replied…
So far, the longest tunnel in tongchuan-yan’an section of Xi’an-Yan’an high-speed railway and Yijun tunnel, the key and difficult project, have fully entered the construction stage in the tunnel.
Tongchuan first issued a ticket for selling cigarettes to minors, confiscated the illegal income of 6 yuan, and made a small series of on-site experience.
It forms a south north channel together with the planned West Chongqing high-speed railway.
Recently, good news came from the West Extension high-speed railway.
Tongchuan’s “Hulk” first issued the latest notice! Tongchuan part of the road temporary traffic control, driving a van to steal a dog! Tongchuan police arrested two suspects.
The construction standard is double track passenger dedicated line, and the design speed is 350 km / h.
It is an important component of the main framework of the “meter” shaped high-speed railway network in Shaanxi Province and a key construction project during the 14th Five Year Plan period.
According to Xiaobian The total length of the West Extension high-speed railway is about 300 km.
It passes through many shallow buried gullies and three fault fracture zones.
The maximum buried depth of the tunnel is 395m.
The accident on national highway 210 in Tongchuan tells us how important it is to wear safety helmets!!! Pay attention to the “parking difficulty” of the people in Tongchuan (source: released in Xi’an)..
It is understood that in order to ensure the safety of entering the tunnel, Yijun tunnel adds pipe shed and advance small conduit at the arch before entering the tunnel to strengthen the lining section and prevent landslide risk.
It is the longest tunnel of the whole line of West Extension high-speed railway.
When the tunnel body crosses the shallow buried section of the valley and the fault fracture zone, the three-step reserved core soil method shall be adopted for construction, the support measures shall be improved, and the advance support in the tunnel and surrounding rock monitoring and measurement shall be done to prevent the risk of collapse and provide a solid guarantee for the safety of on-site construction.
It is a class I high-risk tunnel.
