Just four months.，Press the construction of 4 railways in Sichuan“Fast-forward key”——

Following the Chengdu-Dawan High-speed Railway on September 30、After the construction of the high-speed railway from Xining to Chengdu on October 29，Chengdu-Chongqing Middle Line high-speed railway.、Two high-speed railway involving Sichuan in the West Chongqing high-speed railway will also officially start construction within this year.。At the same time，Double track of Chengdu-Kunming Railway under construction、Chengdu-Lanzhou Railway、Cheng Ziyi is high-speed railway、Chongqing-Kunming high-speed railway、Hanbanan Railway and other projects have been reported frequently.，Striding towards the established goal of opening to traffic。

So many railway projects are under intensive construction.，What changes will it bring to Sichuan?？

Look at the length

Sichuan Railway Operation Mileage Will Increase by Nearly 1/2，More blank areas will be filled.

The relevant person in charge of China Railway Chengdu Bureau Group Company introduced.，So far，The railway operation mileage in Sichuan-Chongqing-Guizhou area under the administration of Chengdu Bureau is 11476 kilometers.，Among them, the high-speed railway operation mileage is 3886 kilometers.；Strive to 2025，The railway operation mileage in the pipeline reaches 1.About 30,000 kilometers，Among them, the high-speed railway is about 5000 kilometers.。That means，By 2025，The new railway operation mileage in Sichuan-Chongqing-Guizhou region is about 1500 kilometers.。

Among them，Sichuan has the largest increment。The Chengdu-Kunming double-track railway is expected to open to traffic by the end of the year.，Chengdu-Lanzhou Railway、The Chengdu-Ziyang high-speed railway is scheduled to open to traffic by the end of 2023.，The Hanbanan Railway is scheduled to open to traffic in 2024.，The construction period of the Sichuan-Chongqing section of the Chongqing-Kunming high-speed railway, which will start at the end of 2020, is 4.5 years——Just these few items，The mileage in Sichuan is about 1000 kilometers.。

A continuous stretch of railway links，Let the network of Sichuan Railway be more and more closely woven.。At present, the railway operation mileage of the whole province is 5687 kilometers.，The total mileage of the Sichuan section involved in the projects under construction and the projects to be started in Sichuan is more than 2000 kilometers.。The next few years，Sichuan Railway Operation Mileage Will Increase by Nearly 1/2。

More blank areas will be filled.。With the construction of Chengdu-Lanzhou Railway、Construction of high-speed railway from Xining to Chengdu，Up to 5 years，More than 400 kilometers of railway will climb from the Chengdu Plain to the plateau at an altitude of more than 4000 meters.，Erect to Dajiuzhai、Langmusi Railway Passage。

The existing traffic pattern of many cities will be changed.。Take Dazhou as an example，Two high-speed railway with a speed of 350 kilometers per hour.——Chengdu-Dawan high-speed railway、The western Chongqing high-speed railway passes through Dazhou.，The two high-speed railway are communicated with each other，And link up Beijing and Guangzhou、Zheng Wan、Yuwan、High-speed railway along the Yangtze River.，Form Chengdu to Beijing、Shanghai's High-speed Railway Corridor，Dazhou will also become the high-speed railway hub for Sichuan to go east and north.。

Look at the speed

There are fast lanes for passenger and freight transportation.，It can form Chengdu to Beijing.、Shanghai's railway corridor with a speed of 350 kilometers per hour

By the end of 2021，The high-speed railway in Sichuan has a mileage of 1390 kilometers.。With the completion of these railway projects,，Sichuan's high-speed railway in the next few years.，Or will set a new record。

At present，The national design speed is 350 kilometers per hour.、High-speed railway lines that have been built and put into operation，There are still more than 20 items that have not reached the speed of operation.。And from“Fourteen five”Plan、Look at the relevant statement of the railway department.，It is a general trend for high-speed railway to operate at high speed according to design standards.。

350 kilometers/Hours is the highest operating speed of high-speed railway in China.。Once normalized“350”，How can Sichuan catch up with the national speed?？

The landing of these projects，Gave Sichuan confidence.。Chengdu-Ziyang-Yichang high-speed railway under construction、Chengdu-Dawan high-speed railway、Chongqing-Kunming high-speed railway and the upcoming Chengdu-Chongqing Middle Line high-speed railway.、The high-speed railway in Western Chongqing is a project with a speed of 350 kilometers per hour.，The Chengdu-Ziyi high-speed railway will be completed and opened to traffic by the end of 2023.。

These projects are related to our country.“Eight vertical and eight horizontal”The high-speed rail network is closely linked.，May be separately raised east、South、The energy levels of the outflow channels in the three directions to the north，Form Chengdu to Beijing、To Kunming、A railway corridor with a speed of 350 kilometers per hour to Shanghai。

These projects will also speed up the existing railway network.。For example，Hanbanan Railway with a speed of 250 kilometers per hour（Banan section）After completion，The travel time of the railway from Bazhong to Chengdu will be shortened from more than 4 hours to 2 hours..About 5 hours；The Chengdu-Dawan high-speed railway with a speed of 350 kilometers per hour will be completed.，The Hanbanan Railway joins the Chengdu-Dawan high-speed railway.，The time from Bazhong to Chengdu will be further shortened to 1.About 5 hours。

High-speed railway supports passenger flow express，The general railway supports the logistics express.。For example，Northwest Sichuan，Chengdu-Lanzhou Railway under construction、The high-speed railway from Xining to Chengdu is a passenger and freight railway.，While taking into account the rapid transportation of passenger flow，Leave space for smooth logistics channel of railway from northwest to southwest。

Look at the height

Overcome technical difficulties，For the national railway construction“Explore the way”

Southwest Railway Construction Difficult。The Ankang-Chongqing section of the West Chongqing high-speed railway to be built soon，Topography of the area where the line passes through、The geological conditions are extremely complex.，It is the first railway crossing the hinterland of Daba Mountain so far.；The newly built Haidongxi-Huangshengguan section of the Xining – Chengdu high-speed railway，Bridges and tunnels account for 80 percent%，Located in Qinghai、Gansu、The plateau area at the junction of three provinces in Sichuan，Facing the lack of oxygen on the plateau、Severe cold and other difficult problems。

Face the difficulties，Break through the difficulties，Sichuan railway construction continues to explore the way。

Chengdu-Lanzhou Railway is another railway built on the plateau above 3000 meters above sea level in China.“Tianlu”，Its construction technology is very difficult.、High security risk、Strict control of environmental protection，It is unprecedented in the history of railway construction in China.。

Xiao Xialin, commander of Chenglan Command of Chenglan Railway Company, introduced.，To overcome these technical difficulties,，Under the leadership of the State Railway Group, Chengdu-Lanzhou Railway has carried out 16 engineering test topics in combination with field engineering problems.，After years of research、A series of important technical achievements have been made in practice and summary.，It has effectively solved the technical problems in engineering construction.。

The high-speed railway of Chengdu-Chongqing Middle Line is designed to run at a speed of 350 kilometers per hour.，It is proposed to carry out higher speed related tests in the section from Dazu Rock Carving to Jianzhou.。This section of the line is about 148.8 kilometers，About half of the total mileage of 291 km。Relevant person in charge introduced，Project construction will create a new generation“Intelligent high-speed railway”，Demonstration leads the highest domestic standards、Construction and operation of the fastest high-speed railway。

Source：Sichuan Daily