Unit1
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.
Syllabus
5 unitsUnit2
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.
Unit3
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.
Unit4
Unit 4: UNDER GROUND BLAST DESIGN
Various cut patterns, U/G blast design, Series & Parallel connection of detonators, Precautions during blasting.
Unit5
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.
Course Outcomes (COs)
After completion of the course student will be able to:
- CO1Understand the principles of rock breakage and explosive mechanic s used in mining and construction.
- CO2Select appropriate explosives and initiation systems based on site conditions and blasting objectives.
- CO3Design blast patterns and charge calculations for both surface and underground operations.
- CO4Analyse blasting results including fragmentation, ground vibration, air blast, and fly rock control.
- CO5Implement safety regulations and environmental practices in blasting operations.
References
- Explosives and Blasting Technology: G. K. Pradhan
- Surface Blast Design: C. J. Kanya
- Rock Blasting: Sushil Bhandari
- Indian Explosive Act 1884
- Legislation in Indian Mines -A Critical Appraisal : Rakesh and Prasad
Official AKTU syllabus
This subject is on page 12 of the original AKTU PDF.