Experimental Investigation on the Vertical Bearing Characteristics of Jacked Piles in Saturated Silt Foundations under Excavation

Table 3

Ratio of ultimate friction resistance to the undrained shear strength of the soil.

(kPa)	.(kPa)	Static load testing		When pile sinking of the jacked pile is finished
		(kPa)		(kPa)
50	20.2	4.8	0.238	3	0.149
100	43.8	9.2	0.210	5.8	0.132
150	65	14.6	0.225	9.4	0.145
100 ⟶ 50	40	7.8	0.195	—	—
150 ⟶ 50	54	11.1	0.206	—	—

Note. denotes overburden pressure of soil.