Semiannual Technical Report Grant No. USDI H0210028 for the period ending August 31, 1971
This investigation of the combined effects of thermal weakening and mechanical disintegration (thermomechanical fragmentation) was initiated with a view toward better understanding of the processes required for more rapidly and economically fragmenting or excavating hard rock. Boring machines for utility tunnels, transportation tunnels or mining operations may be able to utilize the advantages of processes such as thermomechanical fragmentation. Secondary fragmentation or rock crushing processes also can conceivably employ the data obtained from this study.
G. B. Clark et al., "Combined Thermal Weakening and Mechanical Disintegration of Hard Rock," University of Missouri--Rolla. Rock Mechanics and Explosives Research and Department of Mechanical and Aerospace Engineering, Aug 1971.
Mechanical and Aerospace Engineering
United States. Department of Defense
Keywords and Phrases
Drilling; Drilling Machines; Fracture (Mechanics); Granite; Mining Engineering; Rock Drilling; Rock Excavation; Rock (Geology); Thermal Stresses; Rocks -- Thermal properties; Rock mechanics
© 1971 University of Missouri--Rolla, All rights reserved.
31 Aug 1971