Fig. 9

Changing law of TBM cutter torque parameters. (a) Line graph of cutter torque in different strata; (b) Violin graph of cutter torque in different strata; (c) Histogram of cutter torque frequency in different strata.
Changing law of TBM cutter torque parameters. (a) Line graph of cutter torque in different strata; (b) Violin graph of cutter torque in different strata; (c) Histogram of cutter torque frequency in different strata.