Experimental longwall mining in a Pennsylvania anthracite mine (in two parts). II. Use of a shearer loader
Technical Report
·
OSTI ID:7289886
In its search for a highly productive mining system for anthracite beds pitching from 10/sup 0/ to 20/sup 0/, where conventional mobile equipment cannot be used, the Bureau initiated a longwall project by introducing a shearer drum cutter loader of European origin. Because of the undulating nature of the roof and floor and changing bed thicknesses, the machine proved inflexible and extra work was required in lifting bottom coal and blasting top coal. Part 1, Use of Yielding Steel Props, was published in 1964 as RI 6378. Work done in cooperation with the Glen Alden Coal Co.
- Research Organization:
- Bureau of Mines, Washington, D.C. (USA)
- OSTI ID:
- 7289886
- Report Number(s):
- BM-RI-6745
- Country of Publication:
- United States
- Language:
- English
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