A New Modified Peck Formula for Predicting the Surface Settlement Based on Stochastic Medium Theory

Table 4

The relevant parameters of the settlement curve of each internal friction angles φ.

Calculation method	φ (°)	i (m)	Smax (mm)	Relative error in width of settlement trough (%)	Relative error in maximum settlement (%)
The modified Peck formula	0	3.32	−102.00	38.61	−27.85
Peck formula		2.39	−141.37
The modified Peck formula	10	3.47	−97.59	21.55	−17.73
Peck formula		2.85	−118.62
The modified Peck formula	20	3.76	−90.00	9.99	−9.08
Peck formula		3.42	−98.99
The modified Peck formula	30	4.23	−80.09	1.91	−1.88
Peck formula		4.15	−81.62
The modified Peck formula	40	4.94	−68.54	−3.82	3.97
Peck formula		5.13	−65.92
The modified Peck formula	50	6.06	−55.86	−7.89	8.57
Peck formula		6.58	−51.46