The longest tunnel of Lou Shao railway of the hott

The longest tunnel of Lou Shao railway of China Railway 25th bureau group took the lead in lining construction

the longest tunnel of Lou Shao railway of China Railway 25th bureau group took the lead in lining construction

and the later scientific and technological technology has become the patent of foreign development and design. Information on Chinese construction machinery

Guide: at about 19:00 on April 8, colorful fireworks cut through the tranquility of deep mountains and valleys in the night sky, firecrackers sounded, and concrete tankers and pumps roared together, The lining construction of jinshichong tunnel of Lou Shao Railway Project Department of the second company of China Railway 25th Bureau Group officially began. The tunnel became the first tunnel to start lining construction in section I of Lou Shao Railway

at about 19:00 on April 8, colorful and successfully printed on ultimaker 2. Fireworks broke the tranquility of the night sky in deep mountains and valleys, firecrackers sounded, concrete tankers and pump trucks roared together, and the lining construction of jinshichong tunnel of Lou Shao Railway Project Department of the second company of China Railway Construction 25th Bureau Group officially began. The tunnel has become the first tunnel to start lining construction in section I of Lou Shao railway

jinshichong tunnel is located in Gantang town and santangpu Town, Shuangfeng County, Loudi City, with a total length of 4381m. It is the longest tunnel in the whole line of Loudi Shaozhou railway, and it is also a key and difficult control project. In order to realize the connection as soon as possible, the import and export two-way confrontation is implemented. The record of the first opening of the second lining construction is the tunnel exit. After 18 hours of continuous operation, the 12 meter long 138.6 square meter concrete of the first ring was successfully poured

the concrete pouring site of the first ring of the second lining at the exit of jinshichong tunnel

"we first started the construction of the main tunnel, and now we are also the first to start the second lining. Today, the construction personnel of brother units and adjacent tunnel teams came to us to see the trolley and ask about the process and method, which made the operators very proud, and they said they would work together to maintain this leading position." Wu Guangjun, the on-site technical director, said

the start of the second lining construction marks that the construction of jinshichong tunnel has entered a new stage. From then on, the excavation of tunnel body, initial support, inverted arch, second lining construction and other processes are carried out in a circular manner, laying a good foundation for ensuring the completion of tunnel construction tasks on schedule

the concrete is transported from the tank truck to the pump truck

the exit of jinshichong tunnel is one of the standardized chemical sites of the project department. Since the commencement, the project leaders have created a batch of nationally renowned Shandong new material brands and firmly grasped this key and difficult point in construction. All functional departments took the initiative to attack and break down one by one, overcoming many difficulties such as land acquisition and demolition, construction access roads, construction electricity and water, valley construction, etc; Increase the input of personnel, materials, machinery and equipment, refine the construction schedule of each node, and track and implement the whole process; Carefully organize labor competitions in different periods such as "year-end sprint" and "spring offensive", coordinate and optimize the construction, strictly control the construction organization design, strictly control the construction safety and quality, and ensure the smooth progress of the construction

full cooperation of on-site operators