Geoss Good Practice For Installation Of Jacked Foundation Piles In Singapore Link Jun 2026

Jacked piling, also known as hydraulic jacking, involves pushing precast or spun piles into the ground using static hydraulic force rather than dynamic impact. This method is particularly suitable for Singapore’s urban environment, where noise and vibration from traditional driven piles could damage adjacent structures.

| Parameter | GEOSS (Singapore) | BS 8004 (UK) | Eurocode 7 | |-----------|-------------------|--------------|-------------| | Max jacking force | 80% of pile structural capacity | 75% (driven piles) | 85% (static load) | | Heave limit | 15 mm at 1 m distance | 25 mm at 2 m | Not explicitly defined | | Verticality tolerance | 1:200 | 1:75 | 1:100 | | Restrike period (clay) | 3 to 7 days after initial jacking | 1 to 5 days | 2 to 10 days | | Pre-boring permission | Required if SPT > 50 or clay N > 20 | Optional | By specification | Jacked piling, also known as hydraulic jacking, involves

Jacked piles are typically prefabricated steel or concrete sections that are pushed into the ground using hydraulic jacks reacting against the weight of the rig or anchored to the ground. They are ideal for sites with sensitive adjacent structures, strict noise ordinances, or where vibration monitoring is critical. They are ideal for sites with sensitive adjacent