Explosives and Blasting-Theory

Explosives and Blasting: Part-1

Content:

• Detonation and Deflagration
• Ingredients of explosives
• Classification of explosives
• Blasting properties of explosives
  • Strength- Trauzl lead block test
  • Detonation Velocity
  • Density
  • Water Resistant
  • Fume Characteristics
  • Oxygen Balance
  • Detonation Pressure
  • Borehole pressure and critical diameter
  • Sensitivity
  • Safety in handling & storage qualities

Explosives and Blasting: Part-2

Content:

• EXPLOSIVE INITIATING DEVICES/SYSTEMS
  • Detonators
  • Fuse/Cord system
  • Blasting accessories

Explosives and Blasting: Part-3

Content:

• Classifications of firing systems
• Ground blasting techniques
  • Plaster shooting
  • Pop shooting
• Blasting theory
• Rock breakage mechanism

Explosives and Blasting: Part-4

Content:

• Important formula
  • Absolute bulk strength
  • Absolute weight strength
  • Actual scaled distance
  • Burden
  • Spacing
  • Deck stemming
  • Minimum distance
  • Powder factor

Explosives and Blasting: Part-5

Content:

• Blast- Pattern Parameters
  • Burden
  • Spacing
  • Stemming
• Delay patterns
• Blast design

Explosives and Blasting: Part-6

Content:

• Definitions, Rules and Regulations as per CMR
  • Fiery seam
  • Gassy seam of the first degree
  • Permitted explosive
  • Type of Explosives
  • Cartridges
  • Reserve Stations
  • Shotfirers

For complete theory click here

Part 1 https://onlineminingexam.wordpress.com/2015/12/06/explosives-and-blasting-part-1/

Part 2 https://onlineminingexam.wordpress.com/2015/12/07/explosives-and-blasting-part-2/

Part 3 https://onlineminingexam.wordpress.com/2015/12/08/explosives-and-blasting-part-3/

Part 4 https://onlineminingexam.wordpress.com/2015/12/09/explosives-and-blasting-part-4-2/

Part 5 https://onlineminingexam.wordpress.com/2015/12/11/explosives-and-blasting-part-5/

Part 6 https://onlineminingexam.wordpress.com/2015/12/15/explosives-and-blastingregulations-part-6/