Disposal of waste materials from coal mines has continued for many years in Great Britain; quantity has increased in volume and disposal is serious problem; practically all spoil heaps are now cleared or prepared mechanically; use of material, such as for railway ballast, rock for road beds, and material for tennis courts, etc; for forestation; revegetation.
Spoil heaps
Colliery Guardian
Colliery Guardian ; 181 , n 4672
1950
6 pages
Aufsatz (Zeitschrift)
Englisch
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