Question

Depending upon the decreasing ability of surrounding rock to store strain energy in underground metal mining methods can be ordered as

• A. Cut and fill stoping, sublevel caving, sublevel open stoping, block caving
• B. Sublevel open stoping, cut and fill stoping, sublevel caving, block caving
• C. Sublevel caving, sublevel open stoping, cut and fill stoping, block caving
• D. Block caving, sublevel caving, sublevel open stoping, cut and fill stoping

Hint:

As rock stability decreases, the preferred methods generally change as \[ \boxed{ \text{Open stoping} \rightarrow \text{Cut-and-fill} \rightarrow \text{Sublevel caving} \rightarrow \text{Block caving}. } \]

Answer 1

The Correct Option is B