Geoss Good Practice For Installation Of Jacked Foundation Piles In Singapore ((new)) Jun 2026

Unlike bored piling which generates wet soil slurry, jacked piling displaces soil laterally, keeping the job site dry and reducing waste disposal costs.

: Precast high-strength concrete (HSC) piles or steel spun piles are typically used. They must be inspected for manufacturing defects, hair cracks, and dimensional tolerance before installation.

: While considered construction-friendly, the mobilized shaft and base resistance in this formation can vary. GeoSS recommends caution when using load test results from adjacent sites, as workmanship significantly impacts these values. Unlike bored piling which generates wet soil slurry,

The job isn't done when the jack is removed.

The installation of jacked piles is a cornerstone of Singapore's deep foundation landscape, particularly in its dense urban environment where minimizing noise and vibration is critical. The Geo-Engineering Solutions for Sustainability (GEOSS), in close collaboration with the Building and Construction Authority (BCA), the Institution of Engineers, Singapore (IES), and the Association of Consulting Engineers, Singapore (ACES), has issued crucial guidelines that define good industry practice. This article presents a comprehensive guide to these practices, ensuring that jacked piles achieve their design capacity and structural integrity. The installation of jacked piles is a cornerstone

: Jacking rigs are exceptionally heavy, often weighing between 150 to 600 tonnes. The working platform must be designed and certified by a Professional Engineer (PE) to prevent rig tilting or ground bearing failure. Selection and Inspection of Materials and Equipment

After reaching the target force, the pressure is released and reapplied without pause. : Jacking rigs are exceptionally heavy

– Submit the following to QP (Geotech) before backfilling:

The guide emphasizes that comprehensive Site Investigation is mandatory before design and installation.