Home » China’s largest Taklimakan Desert to build a ring-shaped Heruo Railway-IT and Transportation-Railway

China’s largest Taklimakan Desert to build a ring-shaped Heruo Railway-IT and Transportation-Railway

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At about 11 am on September 27, at the construction site of the Heruo Railway (Hetian to Ruoqiang) in Minfeng County, Hotan, Xinjiang, the last set of 500-meter-long steel rails fell steadily, marking the official “closed loop” of the Taklimakan Desert Railway. !The Heruo Railway connects the Hotan area in the southern part of the Xinjiang Uygur Autonomous Region and Ruoqiang County in the Bayingoleng Mongolian Autonomous Prefecture. It is a national key railway project. In the “Medium and Long-term Railway Network Planning”, it is an important regional road network in the western region. Convenient transportation channels in the southwest.

The total length of the railway is 825.476 kilometers, the design speed is 120 kilometers per hour, and there are a total of 20 stations (65 in the long-term plan), of which 9 passenger stations will end the 5 counties of Luopu, Celle, Yutian, Minfeng, and Qiemo. History.

The project officially started construction at the end of 2018, and the track will be fully laid in May 2020. It is expected to be put into operation in June 2022.

Prior to this, the passage ofWest Section of Kashgar-Hetian RailwayCompleted and opened to traffic at the end of 2010,Ruoqiang to Golmud in the east sectionIt will be opened to traffic at the end of 2020.

Together with the Southern Xinjiang Railway and the Geku Railway, they form a railway ring line around the Tarim Basin, which is another major railway ring line in Xinjiang following the formation of the Northern Xinjiang Railway Ring Line last year.

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The Heruo Railway is located on the southern edge of the world’s second largest mobile desert and my country’s largest Taklimakan Desert, known as the “Sea of ​​Death”. Half of it is affected by wind and sand. The weather along the line is hot and dry, construction conditions are difficult, and resources are scarce.

In order to prevent the impact of sand damage on construction, the railway proposed “Sand control first“The construction concept of “, the wind and sand protection project and the railway construction are carried out simultaneously,It is also the first time in national railway construction.

up to now,A total of nearly 50 million square meters of grass squares have been built along the railway line, and nearly 13 million shrubs and trees such as haloxylon, tamarisk and seabuckthorn have been planted, with a plant survival rate of 85%.

Heruo Railway is stillThe longest railway in China that uses sand bridges to control wind and sand. There are 5 main bridges with a length of 40 kilometers., All stand in the vast desert, and wind and sand fly over underfoot, minimizing the impact of wind and sand on the line and train operation.

In order to build these sand bridges, the builders usedApplication technology of prefabricated concrete structureIt changed the previous practice of pouring bridge piers on site, and solved the construction problems such as the impact of wind and sand in the construction of desert railways, the harsh natural environment, the difficulty of water use and the difficulty of concrete maintenance.

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Heruo Railway also adoptedSeamless track construction, And in order to overcome the influence of the large temperature difference on the thermal expansion and contraction of the rail, the rail welding operation can only be carried out at night.

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