Demolition Works

What is the Progressive Demolition?

• •Removal the key structural members to cause complete collapse of the whole structure

• •Commonly  known as top – down demolition

• •removal of selected parts of the structure by dismantling or deconstruction.

Examples of Deliberate Collapse Mechanisms are

• Hand Demolition

• Explosive

• Wrecking Ball

Examples of Progressive Demolition are below EXCEPT

• Pusher Arm

• Wrecking Ball

• Wire Rope Pulling

• Hand Demolition

The PRE DEMOLITION PHASES are as below

• Site survey - Site Preparation - Soft Stripping - Recycling & Reuse

• Site Preparation - Soft Stripping - Recycling & Reuse

• Site survey - Site Preparation - Recycling & Reuse - Soft Stripping

• Site survey - Recycling & Reuse - Soft Stripping

A demolition is to be used for 1-storey Shoplot.

Proposed the best method that is most suitable for this project

• Wrecking Ball

• Hand Demolition

• Pusher Arm

• Explosion

20-Storey High Building is to be demolished.

The site has no adequate access.

Proposed the best method for this activity.

• Explosion

• Wire Rope

• Wrecking Ball

• Hand Demolition

A 5-storey Building is to be demolished.

Adequate access is available.

What is the most economical method to be used?

• Explosive

• Wrecking Ball

• Wire Rope

• Pusher Arm

The Picture shows

• Explosion

• Wire Rope

• Wrecking Ball

• Hand Demolition