MINING COAL

The specification discloses a method of, and apparatus for, winning mineral material from the pillars left by the bord-and-pillar mining process. An arcuate longwall face, which may be convex or concave, is formed along a row of pillars. The mineral material in the pillars is won by mechanical winni...

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Bibliographic Details
Main Authors H. LANGENBERG, H.T. GRISEBACH, H. WEINHOLD
Format Patent
LanguageEnglish
Published 17.09.1981
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
MINING
MINING OR QUARRYING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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Summary:The specification discloses a method of, and apparatus for, winning mineral material from the pillars left by the bord-and-pillar mining process. An arcuate longwall face, which may be convex or concave, is formed along a row of pillars. The mineral material in the pillars is won by mechanical winning means such as a plough, the pillars in each row being won in a non-uniform manner. Some of the mineral material won from the longwall face may be used to fill the stalls left between the pillars behind the longwall face.
Bibliography:Application Number: AU19810067379