Raise Boring Rig (RBR)
4:34
10,000 Year Clock: raise bore excavation (02011)
32:41
Ritom Pumped-Storage Plant Project – Tunneling under extreme conditions
6:34
Bauer BG System - Kelly System
13:08
Large Diameter EPB Shield
13:55
HDD Rigs
5:34
TERRATEC's DN1500 Microtunnelling Systems at work in Bangkok
4:27
Large Diameter Shaft Drilling Timelapse | Keller
12:34