skip to content
Search
Search U.S. government technical reports digitized or harvested by
TRAIL
.
Keyword Search
Enter your search term(s):
[advanced search]
3 results returned
Browse TRAIL Inventories
(opens in new tab)
Search results
Large-scale laboratory drag cutter experiments in hard rock
A laboratory comparison of drag cutting methods in hard rock
Large-scale testing of the ripper fragmentation system
Refine your search results
Published Year
1980-1989 (3)
Subject
Drag bits (Drilling and boring)--Testing (3) *
Rock mechanics (2)
Limestone (1)
Mining machinery (1)
Quarries and quarrying (1)
Quarries and quarrying--Testing (1)
Author
Larson, David A. (3) *
Morrell, Roger J. (3)
Swanson, David E. (2)
Anderson, Sterling J. (1)