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) is crucial to ensuring the required load capacity is achieved without damaging the pile material.
: Overstressing, misalignment, or defects in concrete.
All termination criteria must be specified in the design drawings and specifications, and rigorously monitored during installation. ) is crucial to ensuring the required load
6.3 Trigger and Action Levels
In Singapore, jacked piles are particularly advantageous in with nearby structures and sensitive residents. The jacked piling system uses dead weights to exert hydraulic pressure to push piles into the ground, producing less noise and vibration compared to driven piles, making it suitable for projects in urban areas where residents are sensitive to noise and vibrations. The pile alignment should not be adjusted by
For jacked piles specifically, the jacking machine itself can be treated as “mobile kentledge” for static load testing, allowing proof-testing to a load level equal to the maximum applied jacking force.
The pile alignment should not be adjusted by force during installation. If a pile deviates, corrective actions should be taken, or the pile should be abandoned if necessary. corrective actions should be taken
For further reference, consult BCA’s “GEOSS Technical Reference for Deep Foundations” (TR 60) and SS EN 1997-1:2010 (Eurocode 7) with Singapore National Annex.
A pile is safely terminated when it satisfies two conditions:
Unlike impact hammers, jacking uses static hydraulic force. Good practice under GEOSS focuses on three real-time metrics:
Specialist builders must perform Sonic Logging or PDA/PIT tests to detect hidden underground defects.