Underground Metalliferous Mining — Summer 2023

Define the term: Ore Pillar, Shaft Pillar and Crown Pillar.

Give the detail classification of stopping methods.

Explain the desirable features of selecting a stoping method.

Discuss the present status of Indian metal mining industry.

Discuss the various factors affecting for selection of stopping methods.

Explain room and pillar method with neat sketch.

Explain sub-level caving method with neat sketch.

Discuss the advantages of square set stopping methods.

Define the term: Cross cut, Level, Main Level and Sub Level.

Explain square set stopping method and its applicability.

Discuss the caving method.

Define the term: Panel, Splitting, Stook, Depillaring.

Explain shrinkage stopping method and its applicability with neat sketch.

Discuss the mine closure.

Describe the applicability condition for the room and pillar mining method.

Explain the phases and planning guidelines for mine closure.

Discuss the shape, size and thickness of deposit.

Explain applicability and stope preparation of block caving method.

Explain sublevel stoping method and its applicability with neat sketch.

Describe the limitations and transportation of supported stopping methods.

List the merits and demerits of the sublevel stoping method.

Explain cut and fill stoping method with neat sketch.

Discuss the mine horizontal and vertical development.

List the merits and demerits of the block caving method.

Explain the physical and mechanical characteristics of the ore and the enclosing rocks.