Underground Metalliferous Mining — Winter 2023

List out various factors affecting for selection of stopping methods.

List out various drilling pattern used in Underground Metal Mining. Explain any

oEnxep.l ain the sub level stoping method with neat sketch.

Define the following: (1) Stope (2) Winze (3) Raise.

Explain ore and waste bin with neat sketch.

Explain over hand stopping method with neat sketch.

Explain under hand stopping method with neat sketch.

Define the following : (1) Cross – Cut (2) Lateral (3) Ore Drive

Explain the present status of Indian metal mining industry

Write a brief note on sub level caving method.

Draw a layout of square set stoping method.

Explain recovery and dilution.

Describe the Drop raising method with neat sketch.

Describe skip-pockets in details.

Define the following term: Ore passes, Chutes, Garages and Grizzlies.

Explain room and pillar method with neat sketch.

Write the applicability condition of top slicing.

Describe design and construction of draw points.

Explain in detail the Alimak raise climber method.

How working is carried out in metal mine when ore body is wide?

Write a short note on pneumatic back filling.

Explain in detail cut and fill stoping method.

Explain sand gathering plant.

Describe advantage and disadvantage of square set stopping method.

Write a brief note on mechanical back filling.