Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Full-Scale Field Test Results of the REAM Concept for Hard Rock Excavation
The report describes the results of the full-scale field tests of the REAM concept for hard rock excavation. REAM is an innovative method of rock disintegration which utilizes the impact energy of high velocity projectiles to fracture and eject the rock. The concept was demonstrated by driving a 13-foot-diameter tunnel to a depth of 26 feet in a granitic rock formation at Hope Valley, California. The average mass of rock removed by the 10-pound concrete projectiles impacting at 5000 ft/sec was 3000 pounds. In addition to presenting the rock breakage data, this report discusses the characteristics of the impact ejecta, muck distribution, and wall contour control. (Author Modified Abstract)
Full-Scale Field Test Results of the REAM Concept for Hard Rock Excavation
The report describes the results of the full-scale field tests of the REAM concept for hard rock excavation. REAM is an innovative method of rock disintegration which utilizes the impact energy of high velocity projectiles to fracture and eject the rock. The concept was demonstrated by driving a 13-foot-diameter tunnel to a depth of 26 feet in a granitic rock formation at Hope Valley, California. The average mass of rock removed by the 10-pound concrete projectiles impacting at 5000 ft/sec was 3000 pounds. In addition to presenting the rock breakage data, this report discusses the characteristics of the impact ejecta, muck distribution, and wall contour control. (Author Modified Abstract)
Full-Scale Field Test Results of the REAM Concept for Hard Rock Excavation
J. D. Watson (Autor:in)
1973
78 pages
Report
Keine Angabe
Englisch
Civil Engineering , Construction Equipment, Materials, & Supplies , Hypervelocity projectiles , Underground structures , Effectiveness , Construction , Rock(Geology) , Removal , Projectiles , Design , Self-propelled guns , Impact , Cost effectiveness , Rapid excavation , REAM(Rapid Excavation And Mining) , Rapid excavation and mining , Tunneling , Performance evaluation
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