Underground Metalliferous Mining — Summer 2025

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

Explain the present status of Indian metal mining industry.

Discuss shrinkage stoping method with neat sketch.

Name the factors affecting the selection of stopping methods.

Explain the terms Crown pillar and Sill pillar with a neat sketch.

Differentiate between overhand and underhand stopping method with neat sketch.

Write a brief note on top slicing method.

Define the following terms: (1) Cross – Cut (2) Lateral (3) Sub-level

Name the drilling patterns used in Underground Metal Mining. Explain any one.

Discuss room and pillar stoping method with neat sketch.

Explain sand gathering plant.

Write a note on Ore grade and its distribution.

Discuss Alimak raise climber method with neat sketch.

Write the applicability condition of sub-level caving method.

Discuss the advantage and disadvantage of square set stopping method.

Write a brief note on sub level stoping method.

Draw a layout of square set stoping method.

Write a short note on block caving method.

Describe the Drop raising method with neat sketch

Explain: Raise borers.

Discuss the design and construction of draw points.

Explain in detail cut and fill stoping method.

Write a short note on raising by long hole drilling.

Explain ore and waste bin with neat sketch

Write a brief note on mine closure.