Inverse Analysis and Modeling for Tunneling Thrust on Shield Machine

Table 1

Basic statistical characteristics for the data.

	Minimum	Maximum	Average	Standard deviation
Thrust (kN)	10436.07	17440.65	13376.89	1321.27
Advance rate (mm/min)	24.86	45.89	36.38	5.66
Rotating speed (rev/min)	0.90	1.10	1.02	0.07
Penetration (mm/rev)	22.76	45.89	35.91	5.89
Pressure in chamber (MPa)	0.19	0.30	0.23	0.017
Ground bearing capacity (kPa)	72.83	90.46	83.37	5.97