What is it difficult to break through this newly -opened tunnel during the realization of the Golden -Emperor Railway?

Zhejiang News Client Correspondent Gu Jian Ao Zhang Shumin reporter Jin Liang

On August 25th, the first high -risk double -line long -term tunnel of the Golden Railway, which was undertaken by the 11th Bureau of China Railway, was successfully connected. It laid a solid foundation for the operation of the entire line.

The new Jinye Railway is located in the central and eastern regions of Zhejiang Province. The engineering scope is Yunlong Station from Yiyu Station to Yingtaiwu Station from the Shanghai -Kunming Railway. Class I railway is an important node project to implement the integrated development strategy of the Yangtze River Delta.

Why is the Dazhuang Tunnel successfully penetrated, why is it called a staged breakthrough?

This tunnel is located in Xinchang County, Shaoxing City, and Luzhou City. The total length of the tunnel is 5795 meters. It is a double -line tunnel. The most complicated level I high -risk dual -line tunnel with the most complicated geological conditions. The tunnel cave body ⅴ ⅴ and the siege of the siege account for 91.4%. The overall self -stability of the surrounding rocks is poor, and the water is easy to soften. In addition, the local water system is developed. Essence

Since entering the market, the builders of the 11th Bureau of China Railway adhere to the principles of "short -footing, weak blasting, strong support, less disturbance, fast closed, and diligent measurement". A total of 6 operating planes of No. 1 and No. 2 diagonal wells were excavated at the same time, which greatly improved construction efficiency. On -site managers insist on leaving the work, extend the management chain to the palm of the palm, and fill in the process cycle order, summarize and analyze the process of process connection, quality control and other contents every week, and make timely correction to ensure that the standardization construction is not available.

During the construction, the project construction was uniquely visualized concrete production control center in the project. It adopted intelligent chemical equipment such as self -type hydraulic trestle, automated hanging car, smart lining car, and 3D scanner. The construction level has been significantly improved. Advanced workers and process use not only reduce the labor intensity of the construction personnel and improve the construction efficiency, but also achieve good results in the quality of concrete pouring, over arrelers, and section testing.

After 800 hardships of day and night, the project builders have conquered the construction problems such as the ventilation of the growth of the tunnel, the difficulty of the drainage of the rock and the drainage of the rock, and the drainage of the house, the shallow area, and the deformation of the soft rock. A number of key technologies such as weak spraying concrete technology in the early stage of weak Chengyan Tunnel ensure the safety and quality of tunnels.

"The project team compiles special construction plans for various difficult points projects, and invites industry experts, construction units, design units, etc. to ensure that technical guarantees are in place. Adhere to the first acceptance system, comprehensively analyze the first construction process, and clarify various operations. Requirements are required to form a standard and consistent to ensure the quality of subsequent projects. "Said Zhou Xiongya, chief engineer of the Golden Eunuch Railway Project Department of the China Railway 11th Bureau Group, said.

Yunlong, Fenghua, Xikou, Xinchang, Xinchang, Puzhou, Nanshan Lake, Tiger Deer, Dongyang, and Suxi are set up along the Jinye Railway. It is of great significance to connect the Silk Road Economic Belt and the Maritime Silk Road.

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