🚇 Herrenknecht / Robbins (EPB Shield Face Pressure 1.5-4.0 Bar, Screw Conveyor Discharge TPH)

Earth Pressure Balance TBM Calculator

Calculate hydrostatic and lateral earth support pressures ($1.5 ext{ to }4.0 ext{ Bar}$) for Earth Pressure Balance (EPB) Tunnel Boring Machines: size continuous ribbon screw conveyors managing muck extraction rate (TPH) to strictly match advance speed, prevent surface ground subsidence, and heavy civil tunneling contractor profits.

1. Project & Operating Inputs

Tunnel Excavated Diameter (Meters e.g. 6.5 Meter Metro Tunnel)

TBM Advance Speed (mm / Min e.g. 45.0 mm/Min Penetration Rate)

Customer Bid Price for Supplied & Bored TBM Tunnel ($ / Lin Meter)

Herrenknecht EPB Shield Rig, Cutter Tools, Foam Conditioning & Crew ($ / m)

2. Financial Breakdown & Yield

HERRENKNECHT EPB SHIELD TBMS

Turnkey EPB Tunnel Drive Profit

Heavy Tunneling Civil Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost