Question

Rill stoping method is also known as

• A. Over hand stoping
• B. Under hand stoping
• C. Brest stoping
• D. Room and Pillar stoping

Hint:

The key to classifying stoping methods is the vertical direction of progress.
If you're mining up, it's overhand.
If you're mining down, it's underhand.
Rill stoping involves working upwards, so it's overhand.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
The question asks for the general classification of the rill stoping method.

Step 2: Detailed Explanation:
Mining methods can be classified based on the direction of extraction relative to the haulage level.
-

Overhand (or Overhead) Stoping: In this class of methods, mining starts from a lower level and progresses

upwards.
Miners typically work on top of broken ore or fill, and the ore is passed down to the lower level for transport.
-

Underhand Stoping: In these methods, mining starts from an upper level and progresses

downwards.
Miners work on solid ground, and the broken ore falls to the bottom of the stope.
-

Breast Stoping: In this method, mining proceeds horizontally into a face, similar to room and pillar workings.

Rill stoping is a method where the stope is excavated in such a way that the face is maintained at the angle of repose of the broken ore.
The working face advances upwards and outwards from a central raise.
Since the overall direction of extraction is

upwards from the haulage level, it is classified as a type of

overhand stoping.

Step 3: Final Answer:
Rill stoping is a form of overhand stoping.
This corresponds to option (A).