Earth pressure balance tunnel boring machine EPB

Tunnel Boring Machines Poor Ground, Tough Machine If the geology of your tunnel ranges from soft soils to weathered rock, then a Robbins Earth Pressure Balance Machine (EPBM) is the correct technical solution for your project. This is particularly true when your project is located in an urban environment and ground surface subsidence cannot be tolerated. EPBMs are utilized in the construction of rail tunnels, metropolitan subway systems, highway tunnels, and other projects where the tunnel will be constructed either partly or completely in soft soil beneath the water table. Robbins has integrated over 50 years of TBM design and jobsite experience into our EPBMs. Nobody has a wider range of experience designing innovative machinery to cope with difficult underground conditions. Our engineers will tailor your EPBM to handle the specific challenges of your project. From “Smooth Flow” cutterheads that reduce friction to super-reliable back-filling systems and Variable Frequency Cutterhead Drives, Robbins has taken the traditional EPB design to the next level. WHAT IS AN EARTH PRESSURE BALANCE MACHINE?