Lion Village Tunnel construction site Deng Haolin photo
Shantou, China, November 6 (Guo Jun, Deng Lianxu, Huang Shiwei) On November 6, the Shizizhai Tunnel of the Jieyang-Huilai Railway, a key project in Guangdong Province undertaken by the 25th Bureau of China Railway, was successfully constructed, marking the full start of the tunnel construction of the project.
The total length of the new Jiehui Railway is 107.06 kilometers, of which the new main line is 88.97 kilometers long, and the line starts from Jieyang Station of Meishan Railway, passes through Jiedong District, Jieyang Industrial Park, Jiexi County, Puning City, Huilai County, and finally reaches Huilai Station of Shantou Railway. The whole line has 9 stations including Xinheng (freight connection station), Linpan, Hongyang, Puning North, Puning (and Xiamen-Shenzhen Railway Puning Station), Dananshan, Dananhai, Jieyang (and Meishan Railway), Huilai (and Shantou Railway), and 3 Xichang, Xianmei and Huilai West Lines. The line is class I railway with a design speed of 160 km/h.
The Jiehui Railway, built by the 25th Bureau of China Railway, is located in Puning City and Huilai County, with a length of 11.173 kilometers, including the 9.815-kilometer-long Baijiling Tunnel, the 1.158-kilometer-long Shizizhai Tunnel and a bridge, with a planned construction period of 36 months.
Shizizhai tunnel is the first section of the control project, the tunnel adopts a single-hole single-line design, the maximum burial depth of 100 meters, the tunnel site area is mainly for the erosion of hilly landform, the tunnel mouth section of the hillside for the natural steep slope section, there is a bias phenomenon, and the lithology is mainly granite residue soil and full weathering, strong weathering rock, easy to disintegrate and soften in water, resulting in reduced strength, reduced bearing capacity, complex geological structure, difficult construction.
It is reported that as a key project in the "14th Five-Year Development Plan for the Comprehensive Transportation System of Guangdong Province", after the completion of the Jiehui Railway, it will be connected with the Beijing-Kowloon Railway, the Guangzhou-Meishan Railway, the Meishan Railway, the Shantou-Shantou Railway, the Yingmei Railway, and the Pumei Railway, becoming an important path for the outward transport of goods and the exchange of residents along the route of Jieyang Port. (End)
Source: China News Network