Richard James Robbins (1933 - 2019)
(Born: 1933 - Died: 30 May 2019 - Seattle, USA)
Dick Robbins", as he has been known to the tunnelling world was a...
WARNING UNDER CONSTRUCTION.
Bichak Cutters ("knives" or "scrapers") are cutters used for boring in soft to medium ground. Basically they are metal blo...
Soldering:
Soldering is used to join two or more pieces of similar or dissimilar metals to each other. An example of dissimilar metals for soldering to each...
Y-Parts is the collective term used for the spare parts used on a Tunnel Boring Machine's (TBM) Cutter Head. These are the parts which are worn most and need replacement most often during a boring operation.
Conventional Tunnelling
Refers to creation of underground spaces mainly by means of manual-intensive processes and basic, general purpose tools.
Althoug...
Ryfast is a chain of subsea tunnels in the southwest of Norway. Ryfast tunnels connects Stavanger (the fourth largest city in Norway) with the other side of the...