17MN46 Drilling & Blasting Engineering syllabus for MI



A d v e r t i s e m e n t

Module-1 Principles of Drilling & Drill Bits 8 hours

Principles of drilling:

Principles of rock drilling, drillability, drillability index, factors affecting the drillability. Mechanics of drilling.Selection of drills, care of drills.Energy correlation of drills.

 

Drill Bits:

Various types of drill bits and their design aspects. Study of bit life, factors affecting the bit life. Thrust feed and rotation, alignment and deviation in drilling

Module-2 Explosive 8 hours

Explosives:

Historical Development, properties of explosives, Low and High explosives, ANFO, slurries, Emulsion explosives, heavy ANFO, permitted explosives, testing of permitted explosives, bulk explosives system-PMS, SMS.

Module-3 Firing of Explosives & Blasting Methods 8 hours

Firing of Explosives:

Safety fuses, Detonating cord and accessories, Detonators, Exploders. Electric firing and non-electric firing, Electronic Detonators, NONEL blasting.

 

Blasting Methods:

Preparation of charge, stemming and shot firing. Choice and economical use of explosives, misfires, blown out shots, incomplete detonation, their causes, prevention and remedies.

Module-4 Handling of Explosives 8 hours

Handling of Explosives:

Surface and underground transport of explosives, bulk transport in quarries. Storage and handling of explosives. Magazines, accidents due to explosives. Precautions and safety measures during transportation. Substitutes for explosives and their applications-Hydrox, Cardox, Hydraulic coal burster, Airdox, pulsed infusion shot firing.

Module-5 Mechanics of Blasting & Effects of Vibration 8 hours

Mechanics of Blasting:

Factors affecting rock breakage, Crater theory and its applications, theories of rock breakage using explosives. Theory of shaped charge, detonation pressure, coupling, shock waves impedance, critical diameter etc. calculation of charge and powder factor.

 

Effects of Vibration:

Vibrations due to blasting and damage criteria, controlled blasting methods, design of blasting, air overpressure and fly rock. Economics of blasting.

 

Course outcomes:

At the end of the course students will be able to:

  • Ability to select drilling equipment for drilling in mines under various conditions.
  • Ability to select explosives and accessories for mine specific blasting.
  • Ability to handle explosives and other accessories with safety.
  • Ability to understand the mechanics of blasting which in turn helps in blasting design.

 

TEXT BOOKS:

1. “Explosives and Blasting Practices in Mines,” S.K. Das, Lovely Prakashan, Dhanbad, 1993.(Module I-V)

2. “Explosives and Blasting Techniques,” G.K. Pradhan, Minetech Publication, 1996. .(Module I-V)

 

REFERENCE BOOKS:

1. “Surface Mining”, G.B. Mishra, Module 1, Dhanbad Publishers, Dhanbad, 1978.

2. “Rock Fragmentation by Blasting,” B.Mohanty, Module 4, A.A. Balkema, Rotterdam, 1996.

3. “Advances in Drilling and Blasting” V.R. Sastry, Module 1 and 2, Allied Publishers Ltd., 1993.

4. “Principles of Rock Drilling” U.M. Rao Karanam and B.Mishra, Module 1 and 2 Oxford and IBH, 1998.

5. “Drilling and Blasting of Rocks”, Carlopez Jimeno, etal. Module 7, A.A. Balkema, Rotterdam, Brook fields, 1995.

6. “Engineering Rock Blasting operations”, Sushil Bhandari, Module 3 and 6, , A.A. Balkema, Rotterdam, Brook fields, 1997

Last Updated: Tuesday, January 24, 2023

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