Apparatus and method for large tunnel excavation in hard rock

Patent · 27 May 1975

OSTI ID:4212079

Altseimer, J H; Hanold, R J

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-32-024269
• Assignee: to U.S. Energy Research and Development Administration
• Patent Number(s): PAT-APPL-436,401.; US 3885832
• OSTI ID: 4212079
• Country of Publication: United States
• Language: English

Related Subjects

*PROCESS HEAT REACTORS-- USES
*SUBTERRENE PENETRATORS-- DESIGN
*TUNNELS-- EXCAVATION
420200* --Engineering--Facilities & Equipment
FRACTURING
MELTING
N42200* --Engineering--Facilities & Equipment
N77700 -- Reactors--Plutonium Production
Isotope Production
Chemonuclear
Materials Testing
& Materials Processing Reactors
ROCKS
SOILS