All the tunnels of the Xincheng Kun Railway are all connected!

June 21st

After more than 2,200 days of hard work

Chengkun Railway Energy Expansion Reconstruction Project

(The following referred to as Xincheng Kunkun Railway)

The longest tunnel -Xiaoxiangling Tunnel runs through

Video source: CCTV "Focus Interview"

With the penetration of the tunnel

All tunnels in Jiancheng Kunkun Railway are all connected

Promote steadily

Xiaoxiangling Tunnel

The Xiaosanling Tunnel is located in Xideton County and Yuexi County, Liangshan Yi Autonomous Prefecture, Sichuan. It crosses 10 broken layers and 2 folds, with a maximum buried depth of 1350 meters and a total length of nearly 22 kilometers. Grade high -risk tunnel.

About 30 kilometers on the southeast side of the Xiaosanling Tunnel, there is the first long tunnel of the Chengkun Railway -the Salrada Tunnel. At that time, the builders of the Lao Chengkun Railway rely on the sledgehammer and shoulder the back. At the time of construction, they encountered great difficulty and dangerous obstacles. The length of 6 kilometers was already the limit. To this day, the length of the excavation of the Xiaosanling Tunnel is nearly 4 times longer than that of the Salada Tunnel.

Among the builders of the Xiaosanling Tunnel, many people and ancestors of many people have struggled to fight Sabrada Tunnel. The new and old Cheng Kun Railway condenses the struggle relay of the two generations.

The Geological Geology of the new Chengcheng Kunkun Railway in the Xiaosanling Tunnel is complicated. Because the line crosses the mountains and mountains such as the Daxue Mountains and Xiaoliang Mountains of the East Line Mountains of Hengduan Mountains, many engineering geological difficulties have brought about the construction of the tunnel construction. Difficulties and challenges.

Participating in the new Chengcheng Kun Railway is not only the glory of the new Cheng Cheng Kun builder, but also the mission of history. Faced with the complex and diverse geological forms of the "World Geological Museum", the new era of Cheng Kun builders adhering to the spirit of the Chengkun Railway, who adhered to the "adherence to practical work, innovating the first", struggled to become Kun, and then achieved great achievements.

In order to solve the problem of construction and comprehensively strengthen the management of construction, more than 30 experts organized the establishment of the "Railway Tunnel Construction Technology Innovation Studio", and made every effort to carry out the technical research on the construction of the new Chengcheng -Kun Railway tunnel. And laws, find the crux of problem, and promote the progress of the project in an orderly manner.

During the construction of the Xiaosanling Tunnel, the problem of water damage is the biggest "blockbuster". The construction staff adheres to the principle of "treating rocks first, leaking pressure first, and drainage of water". By adopting various measures such as water detection, leakage, drainage, and water division, the geological conditions of surrounding rock are improved.

After the completion of the Chengkun Railway Energy Expansion Transformation Project, it has great significance to dissolve the existing pressure on the transportation of the Chengkun Railway, increasing transportation and income, and driving the effective connection of local economic development, coordinating poverty alleviation results, and effective connection between rural revitalization.

Source: Southwest Railway

Edit: Jin Xuanmei

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