Mining Engineering > GATE 2018 > Underground Coal Mining
Following information about a longwall retreating panel is given.
Panel length =1800 m
Face length =150 m
Depth of web=0.6 m
Shearer travels at a speed of 1.5 m/min along the face. Each cutting cycle requires a non-operational time of 2 h 20 min. The panel is fully extractable. The number of working days required to extract the panel is ________.
Panel length =1800 m
Face length =150 m
Depth of web=0.6 m
Shearer travels at a speed of 1.5 m/min along the face. Each cutting cycle requires a non-operational time of 2 h 20 min. The panel is fully extractable. The number of working days required to extract the panel is ________.
Correct : 500.0
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