AKTU Blasting Engineering (BMN051) Syllabus PDF – B.Tech 3rd Year

Course Outcomes

1. Understand the principles of rock breakage and explosive mechanic s used in mining and construction.
2. Select appropriate explosives and initiation systems based on site conditions and blasting objectives.
3. Design blast patterns and charge calculations for both surface and underground operations.
4. Analyse blasting results including fragmentation, ground vibration, air blast, and fly rock control.
5. Implement safety regulations and environmental practices in blasting operations.

UNIT-1 COMMERCIAL EXPLOSIVES

Type of explosives, Various Commercial Explosives and their properties, Bulk Explosive Systems, Selection of explosive. Testing, Transportation and Handling of explosives.

UNIT-2 INITIATION SYSTEM & BLASTING ACCESSORI ES

Various types of Exploder and Detonators. Detonating cord, Safety fuse, detonating relays Non electric initiation and blasting accessories.

UNIT-3 SUR FACE BLAST DESIGN

Factors affecting blast design, Selection of various blast parameters Burden, Spacing, Stemming distance, Sub-grade drilling, Depth of hole, Bench height, Diameter of hole, Safe charge calculation, Deck Charging, Drilling patterns, Inclined hole drilling, Secondary blasting.

UNIT-4 UNDER GROUND BLAST DESIGN

Various cut patterns, U/G blast design, Series & Parallel connection of detonators, Precautions during blasting.

UNIT-5 ROCK BREAKAGE MECHANISM

Breakage mechanism, rock fragmentation, Factors affecting rock fragmentation. Adverse effects of Blasting: Back break, over break, Fly rock, Ground Vibration and Noise.

Reference Books

1. Explosives and Blasting Technology: G. K. Pradhan
2. Surface Blast Design: C. J. Kanya
3. Rock Blasting: Sushil Bhandari
4. Indian Explosive Act 1884
5. Legislation in Indian Mines -A Critical Appraisal : Rakesh and Prasad