PhilEnergy 2023Products & Services EPB - Earth Pressure Balance Shield
EPB - Earth Pressure Balance Shield
Earth Pressure Balance Shields (EPB) are a preferred option for soft, cohesive soils with high clay and silt contents and low water permeability. EPB Shields use the excavated soil directly as support medium. A rotating cutting wheel equipped with tools is pressed onto the tunnel face and excavates the material. The soil enters the excavation chamber through openings, where it mixes with the soil paste already there.
Earth Pressure Balance Shield