TBM Penetration Rate & Advance Calculator
Calculate Tunnel Boring Machine (TBM) penetration per revolution, instantaneous penetration rate (ROP), cutterhead torque, and daily tunneling advance.
TBM Cutterhead & Rock Properties
17-inch or 19-inch discs
Max allowable 250–300 kN
Unconfined compressive strength
Typical 35% - 45%
Penetration & Machine Demands
Instantaneous ROP
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Daily Advance Rate
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Total Thrust
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Cutterhead Torque
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Power Demand
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TBM Excavation Performance Summary
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