Three Mining Methods for Vertical, Inclined and Thick Coal Seams Used in France
D. F. COATES, Head, Mining Research Centre, Mines Branch, Dept. of Energy, Mines and Resources, Ottawa, Canada. T. S. COCHRANE, Manager, Mining Research Centre, Mines Branch, Dept. of Energy, Mines and Resources, Ottawa, Canada. G. ELLIE, lngenieur en chef, Charbonnages de France, Paris, France.
The mining of coal in thick and inclined seams is difficult, and there are only a few countries in the world that are really interested in the problems associated with their exploitation. In France a considerable amount of investment has been made in the mechanization of systems appropriate for such conditions.
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