Characteristics of Gravelly Granite Residual Soil in Bored Pile Design: An In Situ Test in Shenzhen

Table 3

Loading test results.

	Diameter (m)	Length (m)	Design working load (kN)	Critical failure load (kN)	Max. Applied load (kN)	Max. Settlement (mm)
TP-1(RDF)	1	8	900	2464	3200	80.66
TP-2(RDF)	1	18	2000	4649	5600	73.61
TP-3(RDF)	1	23	2800	7196	9000	79.52
TP-4(RDC)	1	8	900	3608	4000	51.55
TP-5(RDC)	1	18	2000	5096	6300	72.35
TP-6(RDC)	1	23	2800	8605	10000	64.26

Notes: 1. The design working load is based on a geotechnical investigation report and GB50007-2011. 2. The critical failure load is based on Chinese GB50007-2011, which stipulates that the critical failure load should correspond to a pile head settlement equal to 40 mm.