JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

• Describes various methods of underground mining of coal and metal deposits
• Introduces the basic knowledge on selection of suitable mining techniques vis a vis geo-mining conditions

Course Outcomes

• Students can understand the methods of development and extraction of coal and metal mining
• Emphasis is also made on the performance of various mining techniques

UNIT - I

Development of coal mining deposits: In seam mining, horizon mining, division into levels and districts, Board and pillar development with mechanized system.

UNIT - II

Mine development for working veins, loads and tabular deposits. Layout of drifts, cross cuts, raises and winzes in ore body. Different types of raising methods.

UNIT - III

Extraction of coal mining deposits: Pillar extraction – Factors affecting choice, depillaring with caving, stowing, mechanized depillaring operation. Longwall mining: Choice, suitability, advantages and disadvantages. Longwall advancing and retreating. Method of mining for steeply inclined seams and thick seams.

UNIT - IV

Extraction of metal mining deposits: Classification of stoping methods, factors of affecting choice, stoping methods- Room & pillar, sub level, cut & fill, block caving.

UNIT - V

Case studies of various underground coal and metal mining Techniques. Production, productivity and cost of different mining methods, design of development and extraction panel. Statutory provisions related to underground coal and metal mining methods.

TEXT BOOKS:

• 1. R. D. Singh : Principles and Practices of Modern coal mining
• 2. Y. P. Chacharkar: A study of metaleferrous mining methods. Lovely Prakash, Dhanbad, 1994

REFERENCE BOOK:

• 1. B.C. Arthur. SME mining Engineering hand book. American Institute of mining metallurgical & Petroleum Engineering, New York.