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On April 25, after 997 days of construction, the Shenbai High-speed Railway Loushan Tunnel was successfully completed, laying the foundation for the subsequent ballastless track construction.
Located in Xinbin County, Fushun City, Liaoning Province, with a total length of 4909.72 meters, the Loushan Tunnel is a single-hole double-line tunnel, the longest tunnel in the double-port tunneling construction of the Shenyang-Baihai high-speed railway, and one of the ten tunnel control projects on the whole line. The tunnel is a high-risk tunnel with complex geomorphology and geological conditions, vertical and horizontal ravines, dense vegetation and large terrain fluctuations along the line, and it is extremely difficult to construct.
In order to ensure the smooth breakthrough of the Loushan Tunnel, the railway construction unit innovatively adopted advanced technologies such as the advanced application of the deep buried central ditch and the synchronous excavation of the upper and lower steps and the ditch, so as to improve the tunneling speed and improve the smooth blasting effect and lining quality simultaneously under the premise of ensuring safety, so as to realize the breakthrough of the tunnel as scheduled.
It is understood that the Shenbai high-speed railway, with a total length of 430.1 kilometers and a design speed of 350 kilometers per hour, is an important part of the national medium and long-term railway network in the eastern Northeast of the rapid railway channel, and is the need to improve the layout of the Northeast regional rapid passenger transport network and build the eastern Northeast railway fast channel.
Take a look at the journalists: Ren Binyuan, Meng Lei
Editor: Meng Lei
Correspondents: Han Qingxiao, Li Wei
Editor-in-charge: Leng Wei