Research Article

Performance Evaluation of Hard Rock TBMs considering Operational and Rock Conditions

Table 1

Structural parameters in TBM dynamic model.

Structural parameters

Mass of TBM (t)135
Diameter of cutterhead (m)4
Length of main machine (m)10
Number of pinions8
Number of cutters24
Cutter spacing (mm)84
Diameter of cutter (mm)432
Cutter tip width (mm)9.2