In the EPB type pipe jacking method, the cutter chamber of the EPB type TBM whose front part is sealed with a bulkhead is filled with excavated soil or excavated earth and sand mixed with additives (mud soil), then, the pressure of the earth and sand is maintained at a commensurate pressure with the earth pressure of the face and the groundwater pressure to stabilize the face.

In addition, it is a construction method in which the jacking pipe is pushed and installed by the thrust force of the main hydraulic jack installed in the driving shaft while adjusting the amount of excavated earth and sand discharged with a screw conveyor.
Excavated soil is discharged by the muck backet, squeeze pump, or vacuum device.

The EPB type pipe jacking method is classified into the earth pressure type and the mud pressure type depending on the presence or absence of additive injection.

In addition, additive injection is generally performed to promote plastic fluidization of excavated soil when the content of silt and clay is less than 30%.