Modification of Peck Formula to Predict Ground Surface Settlement of Twin Tunnels in Low Permeability Soil

Table 3

Parameters of the simulation in Zizhi Tunnel.

Project	(cm/s)	(mm)	(mm)	(mm)	(mm)	(m)	(m)	(m)	(m)
S6 section	6 × 10^−6	−48.19	−52.62	−43.65	−53.43	17.18	28.22	11.33	119.39
S12 section	6 × 10^−6	−24.12	−23.87	−25.98	−24.12	16.60	21.22	20.01	33.80
S18 section	6 × 10^−6	−16.87	−14.47	−17.74	−15.09	26.32	26.13	10.89	60.67
S24 section	6 × 10^−6	−22.52	−20.74	−5.83	−23.02	44.65	10.52	45.87	90.32