Shaft TBM
Open-Caisson Shaft TBM
The open-caisson shaft TBM is designed for shallow vertical-shaft works in water-rich strata. It is used for underground car parks, shield-launch shafts and stormwater storage shafts, sized across normal to mega-bore shaft diameters.
Features
High pressure capacity, designed for working pressures up to 8 bar
High construction safety: unmanned underground excavation with minimal surface personnel
High construction precision, with inclinometer and inclination-tube monitoring tracking attitude in real time, and hydraulic lifting trimming segment attitude
Compact ground footprint: a single-arm machine needs only a small surface work site, with surface plant configurable across roadways
Specifications
| Excavation configuration | Twin cutting-arm excavation | |
| Spoil-removal mode | Slurry-circulation discharge | |
| Main-machine height / weight | 10 m / 220 t | |
| Installed power | approx. 2,200 kW |
Configuration and engineering
Every CRCHI TBM is engineered to project. Shield diameter, cutterhead geometry, drive power, segmental ring design and back-up arrangement are configured to the alignment, ground conditions and water pressure of the drive. Project-specific scope beyond the standard envelope is engineered to brief, and where a drive calls for it, a machine is developed from the ground up. CRCHI Australia is the engineering, commercial, commissioning and aftermarket point of contact for Australian projects.
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Interested in the Open-Caisson Shaft TBM?
Contact our team for full specifications, project sizing, and pricing.