Question

Post-pillar method of stoping is a variant of

• A. Cut and fill stoping
• B. Vertical crater retreat method
• C. Sublevel stoping
• D. Sublevel caving

Hint:

Remember: \[ \boxed{ \text{Post-pillar stoping} \;\subset\; \text{Cut and fill stoping}. } \]

Answer 1

The Correct Option is A

Step 1: Recall the post-pillar stoping method. Post-pillar stoping is an underground mining method in which temporary pillars are left to support the roof while mining progresses.

Step 2: Identify its classification. This method is regarded as a variant of \[ \boxed{\text{Cut and fill stoping}} \] because mined-out areas are progressively filled while temporary pillars provide support. Hence, \[ \boxed{(A)} \] is the correct answer.