Sichuan-tibet railway construction slogan daquan

Sichuan-tibet railway, which connects Chengdu, Sichuan and Lhasa, Tibet, is the second railway artery entering Tibet after the Qinghai-Tibet Railway, with a total length of about 1.58 km. The total investment of the project is 270 billion yuan, and the total investment of the whole line is estimated to be 304.5 billion yuan after considering the price difference reserve.

After it is completed and opened to traffic, the time from Chengdu to Lhasa will be shortened from 36 hours to about 12 hours. Sichuan-tibet railway is divided into four sections, of which Chengdu-Ya 'an section and Lhasa-Linzhi section started construction on 20 14, while the former was put into operation on 20 18 and 12.

Up to now, there are 47 tunnels running through the whole line, with 20 bridges19 bridges 1 19 bridges, and track laying 15. 1 1 km completed. It is estimated that the whole track laying will be completed by the end of 2020, 202 1.

How's it going in sichuan-tibet railway?

Wang Guangzhong, deputy to the Chengdu Municipal People's Congress, secretary of the Party Working Committee of China Railway sichuan-tibet railway Engineering Command and executive deputy commander, said in an interview that sichuan-tibet railway has reached the implementation stage after the breakthrough in research and development in the last one or two years and the substantial landing of preparatory work.

he said

After passing the national scientific research project,

Key project of Sichuan Ya 'an-Tibet Linzhi Railway.

Construction will begin in July this year at the earliest.

The estimated construction period is 10- 12 years.

Sichuan-tibet railway has been carefully designed and repeatedly compared in the process of design and route selection.

Wang Guangzhong

"Of the thousands of kilometers from Ya 'an to Linzhi, which is about to start construction in sichuan-tibet railway, the tunnel length accounts for 84%. From now on, we will be in the tunnel just like taking the subway in sichuan-tibet railway. "

In this case, the railway construction is very complicated and difficult, and the significance of whether the preliminary work is fully prepared is more prominent.

Wang Guangzhong

"The more thorough the preliminary work is, the smoother the construction of sichuan-tibet railway will be in the next step."

If there are many tunnels, you may encounter difficulties such as hard rocks, large buried depth and large ground stress.

Wang Guangzhong

"Rock burst may occur when the rock stratum is hard, and the rock stratum is too soft to cause large deformation."

In addition, the construction may encounter a geological environment with high ground temperature and high water temperature. Without special facilities, methods, equipment and technical support, it is difficult for workers to work in it.

Wang Guangzhong

"It is precisely because of these circumstances that we need to consider innovation in existing technologies. In order to break through these problems, we have made efforts all over the country. "

It is reported that more advanced scientific research achievements will be invested in the construction of sichuan-tibet railway, and a large number of machines such as full-face hard rock tunnel boring machine (TBM) will be used to minimize the labor intensity of personnel.

Materials, supplies, personnel and equipment

……

The construction of sichuan-tibet railway will certainly promote the local economic growth.

Construction period exceeds 10 years.

The sichuan-tibet railway project will promote the development of various supporting industries along Sichuan.

at present

Preliminary Work of sichuan-tibet railway (Ganzi Section)

The Start key has been pressed.

As early as March 3rd, sichuan-tibet railway (Ganzi section) had a total of 268 people entering the site, and the deep hole of Baolingshan Tunnel in Luding County and eight deep holes in kangding city resumed work, and the work of changing the route of Paomushan Tunnel-Kangding Tunnel section, repairing Zheduoshan Tunnel and precision comparison scheme was immediately implemented.

In the next step, the Development and Reform Commission of Ganzi Prefecture will cooperate with the railway construction offices of counties (cities) to improve the working mechanism of joint prevention and control, group prevention and group treatment, actively carry out communication and coordination, provide good services, create conditions for the projects under construction in sichuan-tibet railway (Ganzi Section) to the maximum extent, and ensure the smooth completion of the annual target.

This article is from Chejia, car home, and does not represent car home's position.