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Constitutive Relations of Coal and Coal Measure Rocks.

Authors
Ko-HY; Gerstle-KH
Source
NTIS: PB/265-365 Available for Reference At Bureau Libraries :262 pages
Link
NIOSHTIC No.
10000849
Abstract
The properties of coal from the Pittsburgh seam, procured from the Bruceton and Federal No. 2 Mines, were found to be similar. Strength and stiffness properties of beehive mine coal were determined, and the material was found to be isotropic. Mechanical, index, and geologic properties of roof and floor coal measure rocks from beehive mines were measured and correlated. Analytic formulations are given for coal creep under uniaxial loading, while triaxial creep is being investigated. Results of testing of coal model structures are compared with predictions from using several material models.
Publication Date
19760101
Document Type
CP; Final Contract Report;
Fiscal Year
1976
NTIS Accession No.
PB-265365
NTIS Price
A13
Identifying No.
OFR 57-77
NIOSH Division
DRC;
Source Name
NTIS: PB/265-365 Available for Reference At Bureau Libraries
State
CO;
Performing Organization
University of Colorado
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