Drilling Blasting Technology
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Drilling Blasting Technology Syllabus — Unit-wise Content
The official GTU curriculum for Drilling Blasting Technology (subject code 3162211) as prescribed for Mining · Semester 6 divides the course into 5 units, covering 60 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3162211)Unit 1 Rock drilling methods
- Types of drilling operations used in rock breakage
- Applicability and limitations of different drilling methods vis-à-vis rock types and hole diameter
- Percussive & Rotary percussive drilling: Introduction
- Fundamentals of percussive & rotary percussive drilling
- Top hammer drilling
- Down the hole hammer drilling
- Advance systems
- Drilling parameters and their estimation
- Rotary drilling: Introduction
- Fundamentals of rotary drilling
- Special drilling methods: Introduction
- Jet piercing
- Water-jet drilling
Unit 2 Exploration Drilling
- Boring for exploration
- Various types of exploratory drills and their applicability – Auger
- Core Drills
- Core recovery: single and double tube core barrels
- wire line core barrel
- Storage of cores
- Interpretation of borehole data
Unit 3 Explosives and Initiating Systems
- Types of explosives
- their composition and properties
- Selection of explosives
- storage and handling of explosives
- Testing of explosives
- Types of initiating systems – Electrical Detonators
- Detonating Fuse
- Detonating Relays
- Electronic Detonators
- Blasting accessories
- exploders. 9 Subject Code: 3162211 w.e.f
Unit 4 Drilling & Blasting in Surface Mines
- Drilling: Blasthole drills – types
- applicability and limitations
- Mechanics of drilling
- performance parameters
- drilling cost
- compressed air requirement for hole cleaning
- Selection of drilling systems
- drilling errors
- organization of drilling
- Blasting: Mechanics of rock fragmentation
- Livingstone theory of crater formation
- Factors affecting blasting
- Blast design - estimation of burden and spacing
- estimation of charge requirement
- Initiation patterns
- Secondary blasting – pop and plaster shooting
- Problems associated with blasting
- Ground vibration and air over pressure
- Blast instrumentation
Unit 5 Drilling & Blasting in Underground Mines
- Coal mines: Drilling systems and their applicability
- different blasting cuts
- ring hole blasting
- calculation of specific charge
- specific drilling and detonator factor
- initiation patterns
- Metal mines: Drilling systems and their applicability
- blast design for horizontal drivages
- long hole blasting
- vertical crater retreat blasting
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