Research on Stratum Identification Method Based on TBM Tunneling Characteristic Parameters

Table 1

Main performance parameters of EPB.

Name	Parameter
Excavation diameter (mm)	9150
The opening rate of cutter head (%)	35
Main drive speed (rpm)	0∼2.8
Main drive power (kW)	12 × 250
Rated torque (kN·m)	17960
The thrust of the propulsion cylinder (kN)	70000
Rated torque of screw conveyor (kN·m)	249