Collapsed structures

Question 1

Look at the different pictures of collapses.

The six stages of collapse?

Answer 1

Reconnaissance and survey
Elimination of utilities
Primary surface search & rescue

Exploration of voids and spaces
Access by selected debris removal
Terminate by general debris removal

Question 2

Collapse types:

Answer 2

Internal
External
Total collapse

Question 3

Internal collapse types:

External

Answer 3

Pancake
Lean-to
V
Tent

90 degree angle
Curtain fall collapse
Inward/outward collapse