Definition of working
i. When a coal seam is being squeezed by pressure from the roof and floor it emits creaking noises and is said to be 'working.' This noise often serves as a warning to miners that additional support is needed. Sagging roof emitting noises and requiring additional timbering.
Ref: BCI
ii. A working may be a shaft, quarry, level, opencut, or stope, etc. Usually in the plural.
See also: labor, workings
Ref: Fay
Ref: BCI
ii. A working may be a shaft, quarry, level, opencut, or stope, etc. Usually in the plural.
See also: labor, workings
Ref: Fay