A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Apparatus and Method for Large Tunnel Excavation in Hard Rock
The invention provides a tunneling machine which is capable of economical excavating in rock and which simultaneously with detachment of the tunnel core at the tunnel face installs an initial supporting liner on the tunnel walls. Another object is to provide a machine and method capable of an economical excavation rate in hard abrasive rock through the use of a peripheral kerf melter to define the tunnel bore thereby eliminating the short duty cycle and expensive mechanical 'gage' cutters.
Apparatus and Method for Large Tunnel Excavation in Hard Rock
The invention provides a tunneling machine which is capable of economical excavating in rock and which simultaneously with detachment of the tunnel core at the tunnel face installs an initial supporting liner on the tunnel walls. Another object is to provide a machine and method capable of an economical excavation rate in hard abrasive rock through the use of a peripheral kerf melter to define the tunnel bore thereby eliminating the short duty cycle and expensive mechanical 'gage' cutters.
Apparatus and Method for Large Tunnel Excavation in Hard Rock
J. H. Altseimer (author) / R. J. Hanold (author)
1974
6 pages
Report
No indication
English
Application and efficacy of excavation compensation method in shallow, large-span hard rock tunnel
| Springer Verlag | 2025