Ground control study of a mechanized longwall coal operation in West Virginia. Report of Investigations/1985
Technical Report
·
OSTI ID:6149523
This Bureau of Mines report summarizes the analysis and evaluation of the field-measurement results of a comprehensive ground control study conducted in a mechanized longwall coal mine in West Virginia. Emphasis is placed on the three basic ground control parameters: ground pressure, ground movement, and geomechanical properties. Specific topics include premining ground pressures, front-abutment pressure in the longwall panel, histories of pillar loading, differential roof-strata movement and bed separation, differential floor strata movement, entry roof-to-floor convergence, in-situ moduli of rigidity of coal seam and roof and floor strata, and mechanical properties of coal and coal-measures rocks.
- Research Organization:
- Bureau of Mines, Denver, CO (USA). Denver Research Center
- OSTI ID:
- 6149523
- Report Number(s):
- PB-85-241495/XAB
- Country of Publication:
- United States
- Language:
- English
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