10-03-2011, 11:32 AM
Presented by
Abhigail.B
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CONTROLLED DEMOLITION OF STRUCTURES
Introduction
Deliberate destruction of structures and materials by means of
Explosives
IMPLOSION
Planned demolition of buildings.
Pressure & Gravity.
Removing the support of the building.
Demolition of
Building
Historical Overview
Holy Trinity Cathedral in Waterford, Ireland.
Dynamite , a high velocity explosive.
European military gets knowledge in demolition.
Preparations for Building Demolition
Planning.
Placing the explosives.
Blasting the Explosives.
Precautions to be taken.
Planning
To Examine the Architectural blueprints of the buildings.
To Decide what explosives to use.
Position.
Time.
How building implosion works??
Placing the Explosives
• Weaken the supporting column.
• Dynamite.
• RDX(cyclotrimetylenetrinitramine).
Concrete Columns
Steel Columns
Blasting the Explosives
• Use of blasting caps.
• Lead line.
Blasting Cap
Columns Fully Loaded with Explosives and Hooked up to Blasting caps
Precautions to be taken
• Test blast.
• Shield of safety.
Test Blast
Two Types of Blasting Machines A Traditional Track-Bar & A Modern Electronic Control Box
Demolition Industry
Controlled Demolition Group, Ltd & Engineered Demolition in USA.
Kumaaran Demolishers based at tirupur in Tamil Nadu.
Conclusion
