The longest tunnel of Cheng Kun's energy expansion and transformation project -Xiaosanling Tunnel runs through

Red Star News Network (Reporter but Tang Wen) reported on June 21 that reporters learned from the Chengkun Railway Company that on June 21, after more than 2,200 days of hard work, Chengkun's capacity expansion transformation project (hereinafter referred to as Xincheng Kun Railway) was the most Long Tunnel -Xiaoxiangling Tunnel runs through. With the penetration of the tunnel, all the tunnels of the new Chengcheng -Kun Railway are all penetrated, and it is steadily advancing the targets of the entire line.

The Xiaosanling Tunnel is located in Xidis County and Yuexi County, Liangshan Prefecture. It crosses 10 broken layers and 2 folds, with a maximum buried depth of 1350 meters and a total length of nearly 22km. The first long single -hole double -line mountain railway tunnel has been built.

At about 30km on the southeast side of the Xiaosanling Tunnel, the first long tunnel of the Lao Chengkun Railway, the Shamumrada Tunnel echoing it. At that time, the builders of Laoshengkun Railway relying on the sledgehammer and shoulder back, and encountered a great difficulty and dangerous obstruction when building the Shamuma Da Tunnel. The length of more than 6,000 meters was already limited. The excavation length becomes nearly 4 times longer.

Coincidentally, among the thousands of builders of the China Railway Tunnel Bureau of the Xiaobailing Tunnel, many people and ancestors of many people have also fought Samraid Tunnel. The new and old Cheng Kun line condenses the struggle relay of the two generations.

According to Zhang Tao, the person in charge of the professional design of the Chengkun Railway Tunnel of the China Railway Second Court, the geological condition of the new Sung -Kunkun Railway Emeou section of the Xincheng Kunkun Railway in the Xiaoshan Tunnel is particularly complicated. Xiaxiangling and other mountains, the area of ​​the tunnel sites, the mountains and rulongs, the gully, and the tunnel construction faces many engineering geological difficulties such as Yongshui, Sand, collapse, activity breaks, crushing faults, large rocky rock explosion, and high ground temperature. Construction has brought great difficulties and challenges.

The mountain is still the mountain, the water is still those water. In the new era, participating in the construction of the new Chengcheng Kun Railway is both the glory of the new Cheng Chengkun builder and the mission of history. Under the guidance of the spirituality of the old Cheng Kun "to sacrifice the ambition, dare to teach the sun and the moon to change the new heaven", face it. The complex and diverse geological form of the "World Geological Museum", the new era of Chengkun builders adhering to the spirit of "fighting mountains and water, adhering to dedication, innovation and contest", fighting into Kunkun, creating great achievements.

In order to conquer the construction problem of the construction of the new Chengcheng Kunkun Railway and comprehensively strengthen the construction management, more than 30 experts from Chenggui Company organized the design, construction, supervision, and consulting units to create the "Railway Tunnel Construction Technology Innovation Studio". Fully carry out the technical research on the construction of the new Chengcheng Kun -Kun Railway tunnel, summarize the geological changes, grasp the trend and law of change, find the crux of the 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". According to Wang Yangyang, a senior engineer of the "Railway Tunnel Construction Technology Innovation Studio" of Chenggui Company, introduced the rock -soluble dark river during the construction of the Xiaobiangling Tunnel, and the cumulative water volume has exceeded more than 200 million cubic cubic cubic cubic meters, which is equivalent to 15 West Lake water volume. The studio members have repeatedly discussed on -site, adhere to the principles of "giving treatment of water first, leaking pressure first, and drainage of water". Conditions greatly reduce the frequency and scale of risks.

At the same time, the China Railway Tunnel Bureau adopted large -scale mechanized configuration facilities to improve the construction efficacy. By quickly opening up the level to achieve drainage and leakage, it greatly improved the construction progress and ensured that the tunnel construction was high -quality.

After the new Chengcheng Kunkun Railway is completed and opened to traffic, the interconnection of the western region of my country and Southeast Asia will be closely to the existing pressure on the transportation of the Chengdu -Kun Railway, increasing transportation and income. Strategic significance and social significance.

- END -