A tunnel boring machine is used for digging and boring through tunnels. These machines have different specifications, depending on how it will be used. Before the machine is utilized, an understanding of the tunnel boring machine sizes will be crucial.
A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track to move the entire machine forward into the rock face.
Pipe jacking is a specialist tunnelling method for installing underground pipelines with the minimum surface disruption. Primarily used for new sewer construction it is also used for sewer replacement and relining, gas and water mains, oil pipelines, electricity and telecommunication installations, culverts and subways.