Darui Railway Da Bao Duanzai Term Trial runs from the Kunming drive group train to Baoshan as soon as 3.5 hours to reach

On July 19, the Darui Railway Da Bao section carried out passenger trial operation. This means that the Darui Railway Da Bao section is about to be opened. At that time, the fastest operation time of the train of the Kunming to Baoshan EMU is about 3.5 hours, and the fastest operation time of the Dali to Baoshan EMU is about 1.5 hours.

The trial car passed through the Yangtze No. 1 Bridge. Xinhua News Agency

The Darui Railway is an important part of the China -Myanmar International Channel, with a total length of 330 kilometers. It is an important project to improve the layout of the road network and the western development in my country's middle and long -term railway network planning. model. Among them, Dalong section rose to Dali in the east, to the west of the Yangtze and Yongping, and finally to Baoshan. It is the National Railway Class I single -line electrified railway. The design speed is 140 kilometers per hour, and the line is about 133 kilometers. 21, 115.821 kilometers long, accounting for 86.6%of the total length of the line. In 2008, the Darui Railway Da Bao section was officially started. The geology along the route was extremely complicated. It has the characteristics of high land fever, high -ground stress, high earthquake intensity. Rare.

The trainer took a group photo on the trial car. Xinhua News Agency

During the railway construction process, the builders encountered many difficulties. The Dazhu Mountain Tunnel is a "blockbuster" encountered by the builders. This tunnel passes through 6 geological faults, which belongs to the groundwater development tunnel. The entrance of the tunnel is facing the test of "water" all year round. The water volume is up to 12,000 cubic meters per hour, which is equivalent to 10 minutes full of a standard swimming pool; the problem faced by the exit direction is "fire", the highland of the highlands, the high temperature of 40 degrees Celsius makes people hot and hot, and the surrounding rock is weak. Broken, the rock explosion is frequent, and the splash of rock fragments has increased the difficulty of construction. Since the construction of the project in 2008, the builders have successfully resolved technical problems such as 8.3 kilometers of unique ventilation, long -distance anti -sloping drainage, and long -distance tunnels. The Zhushan Tunnel finally penetrated. After the efforts of the builders, on April 30, 2022, the Darui Railway Da Bao section of the orbit was spread across the board. On July 4, 2022, the Darui Railway Da Bao section entered the dynamic detection stage.

The trial car passed the Lancang River Bridge. Xinhua News Agency

The Darui Railway Da Bao section is about to open to traffic, which is a happy thing for the people along the route. Zhou Shaolin, who was working at Kunming, said: "It took more than 10 hours to go home before. It is much more convenient to go home after the Darui Railway Da Bao section was opened to traffic."

It is reported that after the opening of the Darui Railway Da Bao section, it will end the history of Paushan's unreasonable train, which will greatly facilitate the travel of the people along the line. Construction is of great significance. Wang Shaofen report

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