Tunnelling boring machine

Ramoni, M Anagnostou, G. 2010. Tunnel boring machines under squeezing conditions, Tunnelling and Underground Space Technology 25 139-157. 

Shang, Y.J., Xue, J.H., Wang, S.J. et al. 2004. A case history of Tunnel Boring Machine jamming in an interlayer shear zone at the Yellow River Diversion Project in China, Engineering Geology 71 199-211. 

From the shaft bottom plate in 48 m d th the 6 assembly chambers for the tunnel boring machines - for the landwards heading of approx. 3.3 km to the surface and the 15.8 km heading seawards to the breakthrough point underneath the Channel - may be recognized. 

Vi) Kelinohi Dam Water supply, Negeri Sembilan Transfer tunnel Granite/jointed/some faults anticipated On going. Only tunnel excavated using Tunnel Boring Machine. 

The tunnel boring machine (TBM), which was lowered in sections and assembled on the tunnel floor, chips off sections of bedrock in stage 2 of City Water Tunnel No. 3. The TBM s rotating steel cutting teeth replace the dynamite needed for earlier excavation. 

One of the tunnel boring machines used for the construction of the Transfer Tunnel, Lesotho Highlands Water Scheme. 

Rapid Excavation Machine — Tunnel boring machines, shields, road-headers, or any other similar excavation machine. 

Towards the end of the 1980s a Tunnel Boring Machine (TBM) with earth pressure balance drill face bored a tunnel beneath the Oude Maas river south of Rotterdam as a trial for later use along the North South Line (NZL Noord Zuid Lijn) metro, Amsterdam. Despite one passive blow-out failure causing tunnel flooding and delays, the over-all experience was adequate to recommend its use as a tunneling method in Amsterdam. 

---