Underground Metalliferous Mining — Summer 2022

Define raise and winze.

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

Explain the factors affecting the choice of underground metal mining method.

Define open stoping method.

Classify stoping methods.

Explain shrinkage stopping method and its applicability.

Differentiate between sub-level caving and sub-level stoping.

Explain the large-diameter blasthole method.

Write a note on supported stoping method.

Explain the sublevel stoping method with a suitable diagram.

Define caving method.

Write short note on: i. Ore pass ii. Shaft

Explain rill stoping method.

Define mine closure.

List the merits and demerits of the caving method.

Explain the phases and planning guidelines for mine closure.

Differentiate between raise and winze.

Explain sublevel stoping with a suitable diagram.

Explain the block caving method with a suitable diagram.

Define i. Ore ii. Mineral iii. Gangue

Explain the square-set stopping method.

Explain the sub-level caving method with a suitable diagram.

Define i. Grade ii. Cut-off grade iii. Breakeven cut-off grade.

What is present status of the Indian metal mining industry

Explain raising techniques in detail.