A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Equipment for testing 2 1/8-, 4-, and 5 5/8-in. diam rock cylinders subjected to loading conditions comparable to those encountered in underground mining; only minimal specimen preparation is required; maximum axial load that can be applied is 250,000 lb, which corresponds to axial stress of 70,000 psi for 21/8 in. diam specimen; maximum radial pressure that can be applied is same for each specimen diameter, namely, 10,000 psi; mechanical parts of equipment and costs.
Equipment for testing 2 1/8-, 4-, and 5 5/8-in. diam rock cylinders subjected to loading conditions comparable to those encountered in underground mining; only minimal specimen preparation is required; maximum axial load that can be applied is 250,000 lb, which corresponds to axial stress of 70,000 psi for 21/8 in. diam specimen; maximum radial pressure that can be applied is same for each specimen diameter, namely, 10,000 psi; mechanical parts of equipment and costs.
Inexpensive triaxial apparatus for testing mine rock
U S Bur Mines -- Report Investigations
Obert, L. (author)
1963
10 pages
Report
English
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