Question:
A steeply dipping metalliferous ore body is non-susceptible to spontaneous heating. The blasted ore is used as the platform to work in a stope. Appropriate mining method for this orebody is
A steeply dipping metalliferous ore body is non-susceptible to spontaneous heating. The blasted ore is used as the platform to work in a stope. Appropriate mining method for this orebody is
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Shrinkage stoping is ideal for steeply dipping, competent ore bodies, especially when the broken ore can support miners and equipment during extraction.
Updated On: Apr 28, 2025
- room and pillar
- sublevel stoping
- block caving
- shrinkage stoping
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The Correct Option is D
Solution and Explanation
Step 1: Analyzing the geological and safety characteristics.
The ore body is steeply dipping and not prone to spontaneous heating, which allows for temporary storage of broken ore within the stope.
Step 2: Choosing the appropriate method.
Shrinkage stoping is suitable for steeply dipping ore bodies where broken ore can serve as a working platform and support.
Room and pillar is used in horizontal, flat ore bodies.
Sublevel stoping is more mechanized and requires stable ore and backfilling.
Block caving is used for large, weak ore bodies with low-grade material.
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