Shaft Excavation

At Tunnelling Combined, we specialise in the safe, efficient, and precise construction of shafts for a wide range of tunnelling and civil infrastructure projects across Australia. Whether it’s for utility access, microtunnelling launch/reception pits, or deep excavation for infrastructure connections — we’ve got the gear, the team, and the know-how to deliver.

What We Offer

  • Hand-dug and mechanically excavated shafts
  • Steel and concrete liner installations
  • Microtunnelling shaft construction
  • Ventilation and access shafts
  • Caisson sinking
  • Timber-lagged shaft support
  • Confined space entry & safety systems
  • Shotcrete lining and rock bolting
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Experience You Can Count On

Our crews are experienced in both shallow and deep shaft excavation, handling complex ground conditions including sand, rock, clay, shale, groundwater, and high-density urban environments. We follow strict safety protocols, implement engineered shoring systems, and can operate efficiently in tight access or high-risk locations with minimal surface disruption.
 
From inner-city basements to remote infrastructure corridors, we tailor our shaft construction methodology to meet specific geotechnical, spatial, and operational requirements.
 

Applications

  • Sewer and water infrastructure
  • Rail and road tunnelling
  • Mining and utility access
  • Tunnel Boring Machine (TBM) launch/reception pits
  • Telecommunications and power installations
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Plant and Equipment

We mobilise fully equipped shaft crews with all the specialist plant needed for efficient and safe excavation, including:
  • Excavators (1.5T to 50T) – with drill, hammer, and rock bucket attachments
  • Telescopic Clamshell Excavators (up to 30m reach) – for deep, vertical shafts
  • Shotcrete Pumps – for structural lining and ground support
  • Compressors and Ventilation Units – for safe confined space operation
  • Dewatering Systems – for effective groundwater control
  • Grout Pumps and Mixers – for annulus fill, sealing, and structural grouting
  • Shoring Systems and Liners – engineered to suit site-specific shaft designs
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