The Hidden Hazards Beneath Construction Ground
Excavation accidents remain among the most dangerous events on civil projects. Soil collapse occurs with zero audible warning, giving workers inside trenches less than half a second to escape.
1. Mandatory Shoring at 1.5 Metres
Under modern WHS regulations, any trench deeper than 1.5m must be protected with certified trench boxes, hydraulic shoring shields, or benched at the certified safe soil angle.
2. Vacuum Potholing: The Non-Destructive Standard
Never dig blindly with backhoe buckets within 1.0m of marked utility lines. Always use hydro-vacuum potholing to physically expose the line first.
3. Spoil Surcharge & Safe Ingress
Keep spoil heaps at least 1.0m back from the edge and place secured access ladders within every 9 metres of worker travel.