Fig. 6

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