The circular applies to projects with the and is enforceable by the BCA.
Implement universal spherical joints between the hydraulic ram and the pile head to distribute load evenly.
Termination criteria determine when a jacked pile has reached its required founding depth and capacity. The final jacking force can be smaller than 2.5 times the design load for very long piles, but should be . The circular applies to projects with the and
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) applied to the pile must be carefully balanced. It must be high enough to overcome soil resistance but low enough to avoid crushing the concrete pile head. The final jacking force can be smaller than 2
The hydraulic pressure gauge acts as a continuous load test during installation.
Based on industry best practices, key site supervision checkpoints for jacked pile installation include: If you share with third parties, their policies apply
However, jacking piles is not simply "pushing steel into the ground." In Singapore’s complex geological profile—from Kallang Formation clays to Old Alluvium and even weathered sedimentary rocks—poor jacking practices lead to pile buckling, ground heave, and damage to adjacent structures. This is where the good practice guidelines become indispensable.
| Standard | Title | |----------|-------| | | Geotechnical design – General rules | | BCA “Piling” CP 4 (historical reference) | Still referenced for workmanship | | SS EN 12699 | Execution of special geotechnical works – Displacement piles | | LTA Civil Design Criteria | For transport infrastructure projects |
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