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Summary The exploration boring of the coal fields in Western Canada suggest the possibility of evaluating in-seam coal strength by:- Logging of coal core- Geophysical borehole logging.- Phenomenological observations of boreholes. Four categories of coal strength and the associated mechanical stability were proposed. There are:- Excessive strength, sudden and violent deformations.- Moderate strength, stable yielding deformations.- Low strength, unstable fracturing.- Very low or no strength, coal extrusion. The categories of coal could be determined by criteria based on proposed indices.
Summary The exploration boring of the coal fields in Western Canada suggest the possibility of evaluating in-seam coal strength by:- Logging of coal core- Geophysical borehole logging.- Phenomenological observations of boreholes. Four categories of coal strength and the associated mechanical stability were proposed. There are:- Excessive strength, sudden and violent deformations.- Moderate strength, stable yielding deformations.- Low strength, unstable fracturing.- Very low or no strength, coal extrusion. The categories of coal could be determined by criteria based on proposed indices.
Coal strength evaluation from boreholes
Jermic, M. L. (author)
1982
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
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