Depending on the purpose of the tunnel, tubings’ dimensions will vary.
The mould you can see in the video is used for the production of 8 tunnel segments, which form a single segment of a tunnel pipe. The inner diameter of a pipe will be 1,680 mm, the outer diameter—1,980 mm. The ring's height will be 320 mm.
Core drivers installed in the mould are used to create hollows in the tubing, which will later allow its connection to other elements in order to create a single structure.
The mould’s hinged sides make the finished concrete products demoulding process much easier.