The specific lining length of the second lining trolley can generally be divided into: 6m, 9m, 12m, 15m, etc. The specific length of the second lining trolley depends on the curvature of the tunnel in actual construction.
The second lining trolley means that the second lining trolley is an important link in tunnel construction, and the concrete lining trolley is an indispensable construction equipment for tunnel concrete lining. Concrete lining trolley is a necessary equipment for secondary lining in tunnel construction, which is used for concrete lining construction of tunnel inner wall.
Throughout the ages, people have praised two things in the world as freshest, one is "fish" and the other is "sheep". These two things ad