Lane Cove Tunnel
Location:
Lane Cove Tunnel, Sydney, NSW
Client:
TransUrban
Duration:
3 months
Scope:
Fire-Retardant Material (FRM) Removal, Shotcrete Surface Restoration
Objective:
ProStrip was commissioned by TransUrban to remove 3,000 m² of 75 mil thick fire-retardant material (FRM) from the Lane Cove Tunnel overpass. The goal was to restore the shotcrete surface to its original architectural condition, facilitating necessary refurbishments and repairs.
Challenges:
- Night operations requiring full closure of the Lane Cove Tunnel (LCT) for FRM removal.
- Ensuring restricted access and safety of authorised personnel during operations.
- Managing noise, dust, and airborne contaminants within the enclosed operational environment.
Solution:
- Environmental Controls: Erected dust curtains, dust collectors, and sound barriers to contain noise and airborne contaminants within the work area.
- Wet Abrasive Blasting: Employed wet abrasive blasting methodology to suppress dust and effectively remove FRM from the shotcrete surface.
- Operational Efficiency: Ensuring all abrasive media and waste were cleaned and disposed of before the LCT reopening at 5:00 am.
- Minimal Disruption: Ensured operations were conducted with minimal disruption to neighbouring properties and other maintenance activities within the LCT.
Outcome:
ProStrip successfully removed all FRM from the specified area, as confirmed by engineer reports, allowing for necessary repairs to commence. The wet abrasive blasting method proved effective in stripping through tough FRM while maintaining environmental and operational integrity.