Combined Thermal Weakening and Mechanical Disintegration of Hard Rock

Publication Year:
1971
Usage 16
Downloads 11
Abstract Views 5
Repository URL:
http://scholarsmine.mst.edu/min_nuceng_facwork/1231
Author(s):
Clark, George Bromley; Lehnhoff, T. F.; Fenton, Gary F.; Patel, M. R.; Wang, Jaw K.; Allen, Vernon Dale
Publisher(s):
University of Missouri--Rolla. Rock Mechanics and Explosives Research and Department of Mechanical and Aerospace Engineering
Tags:
Drilling; Drilling Machines; Fracture (Mechanics); Granite; Mining Engineering; Rock Drilling; Rock Excavation; Rock (Geology); Thermal Stresses; Rocks -- Thermal properties; Rock mechanics; Drilling; Drilling Machines; Fracture (Mechanics); Granite; Mining Engineering; Rock Drilling; Rock Excavation; Rock (Geology); Thermal Stresses; Rocks -- Thermal properties; Rock mechanics; Mechanical Engineering
report description
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.