Glossary.

The start of the excavation work of a tunnel and the assembly of the tunnel boring machine. The construction site assembly of the TBM usually takes place on a shield cradle, where the machine is in the start position.

Production facility for the manufacturing of the precast concrete segmental linings. Usually positioned close to the production site in order to shorten the transport distances and to ensure smooth supply of the segments.

Long distance tunnelling is mainly characterised by the employment of intermediate jacking stations and the possibility of the exchange of tools. In this respect, the pipe lubrication has an important function.

Longitudinal excavation tool of a roadheader.