Address the unique below-ground hazards of tunnel construction with engineering controls and real-time monitoring.
Tunnelling is among the most hazardous construction activities, with workers operating in confined atmospheres where ventilation, air quality and emergency egress are constant concerns. Diesel particulate matter now has a workplace exposure limit of 0.1 mg/m³ elemental carbon, requiring real-time monitoring and engineering controls on every tunnel project. Respirable crystalline silica from rock cutting compounds the respiratory risk, particularly with the reduced RCS exposure standard effective February 2026. A dedicated WHS management system covering ventilation design, continuous air monitoring and emergency evacuation planning is non-negotiable for tunnel construction under WHS Regulation 2025.
Confined spaces, work in tunnels, work in atmosphere with airborne contaminants
Required for all tunnelling projects
We help tunnelling contractors develop compliant ventilation plans, DPM monitoring programs, confined space procedures and emergency evacuation SWMS.
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