2017 NFPA 1006 Straight Trench Activity Sheet

User Manual: Pdf 2017-NFPA-1006-Straight-Trench-Activity-Sheet

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Objective: Primary Task:
1. Support a nonintersecting trench straight wall trench of 2.4 m (8ft) or less as a member of a team
2. Use a size-up information, an action plan, a trench tool kit, and assignments
3. Use strategies to minimize the further movement of soil effectively
4. The trench walls, lip, and spoil pile are monitored continuously
5. Rescue teams and personnel remain in the safe zone
6. Sloughs or wall shears are mitigated
7. Emergency procedures and warning systems are established & understood by participating personnel
8. Incident specific PPE is utilized
9. Physical hazards are identified and managed
10. Victim and rescuer protection is maximized
11. Victim extrication methods are considered
12. A rapid intervention team is staged
INSTRUCTIONS TO THE CANDIDATE
The candidate, given equipment likely to be used in a trench rescue, a trench, or trench prop, shall
explain and / or demonstrate how to properly shore a straight trench of 8 ft or less. The candidate shall
make all appropriate air cart, regulator, hose, deadman, and shore connections. Shores will be installed
in the correct sequence and correct pressure for the given soil. There will be no uncontrolled release of
air or energy. Correct PPE is will be used. Hazards are identified. Provisions of rescuer safety and
extrication are made. Provisions for RIT and patient extrication and transfer are stated.
Shoring Sequence
Full Points-(all must apply)
Shore Measurement and Installation
Full Points-(all must apply)
• Measurement is accurate and level strongback to strongback
Shoring Spacing
Full Points-(all must apply)
*Either
*Or
*Or
*And
• Candidate states and explains MSFA rule of thumb: 2'-4'-2': 2' from top, 4' centers vertically and
• Candidate state and explains Martinette's: 18"-24" from lip, 4' spacing vertically and horizontally,
• Correct measurement and placement of center shore takes place: middle distance between top
• (Paratech) Extensions not longer than 3 ft
• Shore is installed remotely or with lowering ropes (student articulates- if working alone)
• Shore is within-15 degrees of level
• Two #8 nails toe-nailed to each foot
• Feet chosen have full contact with strongback
• Student correctly refers to and states correct spacing based on manufacturers or OSHA tabulated
• (Paratech) No more than two extensions
Mississippi State Fire Academy
Trench Rescue Operations Level Skill
NFPA 1006 11.2.1
2017 Ed.
Support a Nonintersecting straight wall
trench of 8 ft or less
PERFORMANCE EVALUATIONS & INSTRUCTION SHEET
Performance Steps
• First panel set and set of shores in closest proximity to the patient is stated
• Pneumatic shores: Middle / Bottom / Top
• Wood Shores: Top / Middle / Bottom
• Measurement is calculated by subtracting the dimensions of 2x (panel + strongback)
• Correctly sized strut is chosen
Operation of Air Cart
Full Points-(all must apply)
Shore Pressure
Full Points-(all must apply)
(Paratech)
(Paratech)
(Paratech)
**
Demobilizes Air Cart / Shores / Tools
Full Points-(all must apply)
• Method 1:
(And)
Demonstrates / Explains Use of Tool Side of the Cart
Full Points-(all must apply)
• Explains reason for other side of cart: i.e. different air fittings & pressure
Full Points-(all must apply)
● Candidate explains need and provisions for a RIT team
● Candidate explains staging location
● Candidate explains RIT Team training and equipment
● Candidate explains rescue provisions: ladders, tag lines, spotters, safety officer
• Provides examples of useful tools: Palm Nailer, Nail Gun, Impact Wrench, Blower
• Turn Down / Bleed Down Regulators & Lines
• Release / Discharge remaining air through deadman(Red & Green buttons at same time), air
• Method 2:
• Turn Down / Bleed Down Regulators & Lines
• Release / Discharge remaining air through deadman(Red & Green buttons at same time), air
• Turn off valves to air line(s)
• Turn high pressure cylinder off
• Open Up / Release Air: by turning valve open above the regulator block
• Pneumatic Shores removed in sequence: Top-Bottom-Middle
• Middle pneumatic shore is removed remotely from outside the trench
• Correctly states / applies pressure for various shop tools (90 PSI)
• Turn high pressure cylinder off
• Selects high pressure side of the cart an explains why
• Adjusts regulator to the correct pressure for job application (explains why)
• Opens valve to desired hose(s)
• States or demonstrates shooting: 200 PSI for C Soil (formerly 250)
• States or demonstrates shooting: 200 PSI for B Soil
• States or demonstrates shooting: 150 PSI for A Soil
• States or demonstrates regulating: 118(120) PSI for High Pressure Air Bags
• States or demonstrates regulating: 7 PSI for Low Pressure Trench Cushions
• States or demonstrates regulating: 14 PSI for Medium Pressure Lift Cushions
• States or demonstrates regulating: 90 PSI for shop tools: palm nailer, nail gun, impact wrench
• States or demonstrates shooting appropriate pressure for A, B, C, Soils for Air Shore / ProsSpan
• Chooses correct / appropriate: tool, deadman controller, or other adjunct for operation
• All valves and regulators are checked and verified prior to operation
• Correct high pressure cylinder valve is turned on
• Orients Selection valve to correct bottle
• Ensures all valves are closed
• Makes appropriate hose connections and locks collars in place
Safety / PPE / Victim Extrication Evaluation Criteria:
Full Points-(all must apply)
Time Evaluation Criteria:
Full Points- ● Under 10 minutes
● Candidate utilizes appropriate PPE: Protective toe boots, helmet, gloves, eye protection, ear
● Candidate abides by safety zones, uses ground pads, & non-entry techniques when possible
● Candidate makes decisions to the greatest benefit of potential victims
● Shoring considerations allow for efficient rescue and extrication
● Candidate's use of system and components prevents unsafe conditions (whipping lines, air burst,
over loading, over pressurizing)

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