Constitutive relations of coal. Annual report, 1972
Technical Report
·
OSTI ID:7327543
Most of the studies performed during 1972 were done on coal from two sources: the Old Ben Mine No. 22 in Illinois, and the Bruceton Experimental Mine of the Bureau of Mines in the Pittsburgh seam of Pennsylvania, which may be considered typical of coal sources of economic importance in the midwestern and eastern parts of the United States. While the researchers were restricted to grab sampling within the Old Ben Mine to minimize interference with commercial operations, they received help in securing material from the Bruceton Mine under controlled conditions of location and orientation, which permitted them to attempt a study of the variation of coal properties over the depth of the Pittsburgh Seam. The study involved Hoek cell tests of the Old Ben and Pittsburgh coal, cubical tests, zonal testing of the Pittsburgh coal, tests for compressive strength, tests for tensile strength, behavior of coal under sustained loads, and petrographic investigation.
- Research Organization:
- Colorado Univ., Boulder (USA)
- OSTI ID:
- 7327543
- Report Number(s):
- PB-223743; BM-OFR-58-73
- Country of Publication:
- United States
- Language:
- English
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