Seam wave characteristic in an eastern US coal. Paper C1. 5. [Ohio]
Seam waves have been used extensively in Europe for coal mine planning, but the technique has not been applied in the eastern United States. Seam wave propagation characteristics have therefore been measured in the Lower Freeport coal of eastern Ohio. The tests were conducted between two perpendicular underground entries. The Love-type fundamental mode was the most prominent seam wave feature observed. A comparison of an analysis of the data with theoretical dispersion curves gave a wave guide thickness of 1.7 m, which agreed with the actual coal thickness. Rayleigh-type seam waves were also observed but their characteristics were more difficult to determine because the signal-to-noise ratio was poorer.
- OSTI ID:
- 5574019
- Report Number(s):
- CONF-821025-
- Journal Information:
- Geophysics; (United States), Journal Name: Geophysics; (United States) Vol. 48:4; ISSN GPYSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
011000* -- Coal
Lignite
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Geology
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012000 -- Coal
Lignite
& Peat-- Mining
58 GEOSCIENCES
580203 -- Geophysics-- Geophysical Survey Methods-- (1980-1989)
COAL DEPOSITS
COAL MINES
COAL SEAMS
DIMENSIONS
FEDERAL REGION V
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
MINES
NORTH AMERICA
OHIO
PLANNING
RESOURCES
SEISMIC SURVEYS
SEISMIC WAVES
SURVEYS
THICKNESS
UNDERGROUND FACILITIES
USA
WAVE PROPAGATION