s_u-Based Shaft Friction Design Method and Evaluation for Pipe Pile

Table 3

Comparison of measured and calculated results of tension capacity with different design methods.

Methods	Shaft resistance Qs (MN)	Base resistance Qb (MN)	Total resistance Qt (MN)	Ratio of calculated and measured capacity (%)
Measured	14.150	0	14.150	NA
API-00	18.075	0	18.075	127.7
Fugro-96	15.672	0	15.672	110.8
NGI-05	13.410	0	13.410	94.8

Note. The tension capacity measured deducts the weight of pile and soil plug (4.550 MN); the shaft resistance in sand all uses the Unified CPT-based method [5]; the base resistance in tension is not considered.