<![CDATA[Full-scale static uplift testing can be used to evaluate the load–displacement response and deformation behavior of foundation piles under actual ground conditions. This study evaluates the deformation behavior of a bored pile based on a field testing report from East Jakarta, Indonesia. The pile had a diameter of 1.00 m and an actual length of 26.95 m and was tested up to 240 ton, equivalent to 200% of the design uplift load of 120 ton. The available summary data were analyzed using a quantitative descriptive approach, focusing on the load–displacement curve, the load-to-displacement ratio, displacement changes during the maximum load-holding period, residual deformation after unloading, and variations in the readings of four dial gauges. The average displacement increased from 0.19 mm at a load of 30 ton to 11.39 mm at the beginning of the 12-hour holding period at 240 ton and 11.49 mm at the end of the holding period. The additional displacement during load holding was 0.10 mm, corresponding to an average displacement rate of 0.0083 mm/h. The residual deformation after unloading was 3.59 mm, indicating a displacement recovery of 7.90 mm, or approximately 68.8% of the maximum displacement. The ratio Q/s decreased from 157.9 tonnes/mm at 30 tonnes to 21.1 tonnes/mm at 240 ton, indicating a nonlinear characteristics response of the pile–soil system. These findings characterize the deformation response of the tested bored pile within the investigated loading range.]]>
