Trench Rescue

Question 1

Define a trench

Answer 1

Excavation of land that is deeper than it is wide (cant be wider than 15’)

Question 2

1st on scene engine company list of duties on a trench rescue

Answer 2

Identify type of trench
Type of collapse
Type of soil
# of patients (conscious?)
Hazards in trench
Permit
Exclusion zone (turn of machinery 100’)
Monitor trench
Emergency

Question 3

Questions to ask when forming your plan for a trench rescue?

Answer 3

What happened
Victims condition
Responsive or not and why
Hazards
Shoring in place 
Spoil pile 
Soil rating
Is machinery operating

Question 4

How to approach a trench

Answer 4

From the narrow parts and stay 4ft from the lip of trench

Question 5

What are the zones in a trench rescue?

Answer 5

Exclusion zone- immediate rescue area

Hazard Reduction Zone- Apparatus

Support Zone- non essential support

Question 6

How do you mark victims in a trench

Answer 6

On two different places (two sided) in case of collapse

Question 7

Ladder placement in trench

Answer 7

25ft away in direction of travel

Question 8

How to make the edge (lip) of tench stronger?

Answer 8

Place 3/4” plywood to disperse the weight

Question 9

What are the types of collapse patterns in a trench?

Answer 9

Spoil pile slide
Side wall shear
Slough in (bell bottom)

Question 10

We treat all soil as what type?

Answer 10

Class C

Question 11

What class C soil will stand long enough to be shored

Answer 11

C-60

Question 12

What class C soil wont stand up long enough to be shored?

Answer 12

C-80

Question 13

Depth of trench that speed shores will work

Answer 13

6-8ft

Question 14

Speed shore placement around patient

Where should the struts be

Answer 14

Should be placed on both sides 4ft apart from each other

2ft from toe and 1ft from lip

Question 15

What are protective measures for victim in a trench

Answer 15

Placing backboard, ladder or plywood over them the shield them