Question:medium

For highwall mining, web pillar design is governed mainly by

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Web pillar design in highwall mining is primarily controlled by \[ \boxed{ \text{Overburden load and coal strength}. } \]
Updated On: Jul 14, 2026
  • Surface drainage
  • Overburden thickness and coal strength
  • Coal calorific value
  • Conveyor speed
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The Correct Option is B

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