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Questions and Answers
Shrinkage stoping refers to a mining method in which broken ore is permanently removed from the stope during active mining.
Shrinkage stoping refers to a mining method in which broken ore is permanently removed from the stope during active mining.
False (B)
Shrinkage stoping involves excavating the ore in horizontal slices, starting at the top of the stope and advancing downward.
Shrinkage stoping involves excavating the ore in horizontal slices, starting at the top of the stope and advancing downward.
False (B)
When the stoping has advanced to the upper limit of the planned stope, the drilling and blasting are discontinued, and the remaining 60 to 70% of the ore can be recovered.
When the stoping has advanced to the upper limit of the planned stope, the drilling and blasting are discontinued, and the remaining 60 to 70% of the ore can be recovered.
True (A)
Smaller orebodies can be mined with a single stope, whereas larger orebodies are divided into separate stopes with intermediate pillars to stabilize the hanging wall.
Smaller orebodies can be mined with a single stope, whereas larger orebodies are divided into separate stopes with intermediate pillars to stabilize the hanging wall.
Shrinkage stoping does not require the drawing off of broken ore to maintain a suitable working space.
Shrinkage stoping does not require the drawing off of broken ore to maintain a suitable working space.
What is shrinkage stoping in underground mining?
What is shrinkage stoping in underground mining?
How is the ore excavated in shrinkage stoping method?
How is the ore excavated in shrinkage stoping method?
What is the percentage increase in occupied volume of the blasted ore in shrinkage stoping?
What is the percentage increase in occupied volume of the blasted ore in shrinkage stoping?
What is the process when the stoping has advanced to the upper limit of the planned stope in shrinkage stoping?
What is the process when the stoping has advanced to the upper limit of the planned stope in shrinkage stoping?
How are larger orebodies mined in shrinkage stoping?
How are larger orebodies mined in shrinkage stoping?
Study Notes
Shrinkage Stoping in Underground Mining
- Shrinkage stoping is a mining method where broken ore is permanently removed from the stope during active mining.
Ore Excavation in Shrinkage Stoping
- Ore is excavated in horizontal slices, starting at the top of the stope and advancing downward.
Stope Advancement and Ore Recovery
- When stoping has advanced to the upper limit of the planned stope, drilling and blasting are discontinued.
- 60 to 70% of the ore can be recovered after stoping has advanced to the upper limit of the planned stope.
Mining of Ore Bodies
- Smaller orebodies can be mined with a single stope.
- Larger orebodies are divided into separate stopes with intermediate pillars to stabilize the hanging wall.
Characteristics of Shrinkage Stoping
- Shrinkage stoping does not require the drawing off of broken ore to maintain a suitable working space.
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Description
Test your knowledge of underground mining with this quiz on shrinkage stoping, a method where broken ore is temporarily retained in the stope to provide support. Learn about the techniques and principles of this mining method.
