Safety checklist — Deep foundations / Piles
Pile driving, helical piles and micropiles. Compliant with Québec's Construction Safety Code (CSTC) and CNESST standards.
Before work
12 items- ✓
PPE worn: hard hat, hearing protection (plugs + muffs), steel-toed boots, glasses
- ✓
Info-Excavation contacted — service locations confirmedCritical
ℹ️ 1-800-663-9228 — mandatory before any ground penetration
- ✓
Foundation plan reviewed — location, depth and bearing capacity
- ✓
Pile driver / hydraulic hammer or drill inspected and stabilized
- ✓
Safety perimeter marked around driving equipment
- ✓
Check distance to overhead lines — clearance per voltageCritical
ℹ️ Min. distance 3 m (< 125 kV) to 12 m (> 345 kV) — see CNESST table
- ✓
Piles inspected — integrity, length and diameter conform
- ✓
No one stands under the pile or hammer during drivingCritical
ℹ️ Zero tolerance — falling pile or ram = fatal risk
- ✓
Communication by signals between operator and ground crew
- ✓
Check refusal and bearing capacity per specifications
- ✓
Vibrations monitored — check impact on adjacent structures
- ✓
Misaligned piles reported immediately to engineer
After work
4 items- ✓
Piles cut to proper elevation if required
- ✓
Driving report completed (depth, refusal, blow count)
- ✓
Load tests performed per spec (static or dynamic)
- ✓
Pile heads protected before footing pour
More checklists — Heavy Work
More safety checklists
Risks and prevention — Deep foundations and piles
Pile driving generates noise levels that can exceed 120 dB, well above the 85 dB RSST threshold without protection. Double hearing protection (plugs + muffs) is often necessary. Ground vibration may affect adjacent structures.
Helical piles and micropiles require drilling machinery whose swing radius must be barricaded. Workers must never stand in the drill's pivot zone. Machine stability on soft ground must be verified before each installation.
Precast piles suspended by crane pose a dropped-load risk. Rigging must be checked, signals agreed upon, and the perimeter cleared before any lift.
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