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

For members, a free PDF download is available. Non-members may purchase the guide at S$120 (hardcopy) or S$90 (digital). The document includes 12 appendices, including sample checklists, heave calculation nomographs, and calibration log templates.

has grown significantly across Singapore's dense urban footprint. The technique offers an eco-friendly, virtually vibration-free, and low-noise alternative to traditional driven piling methods.

Singapore rigs frequently exercise capacities up to 800 tonnes . GeoSS advises operating machines up to roughly 75% of their maximum capacity to prevent component wear and preserve control tolerances. For members, a free PDF download is available

is then released to zero and subsequently re-applied (without pause) to ensure the pile has settled into its final seating. C. Pile Group Sequence

: The pile is jacked into the ground using a force ( Pjcap P sub j GeoSS advises operating machines up to roughly 75%

In alignment with Singapore Standards (SS CP 4), the vertical deviation must strictly be kept within 1 in 75 to 1 in 100. 4. Managing Joint Welds and Splices

| Problem | Root Cause | Good Practice Mitigation | |---|---|---| | | Excessive jacking force in hard stratum | Monitor jacking force; use reinforced tip shoes | | Lateral soil movement | Soil heave from displacement | Sequence installation from centre outward; use control piles | | Neighbouring structure distress | Ground movement from piling | Install instrumentation; adopt “Managing Adverse Impact” framework (GEOSS Seminar 2015) | | Unexpected obstructions | Inadequate site investigation | Conduct probe holes; use Gyro Piler rotary cutting capability | | Installation records lacking | Poor documentation | Implement digital logging system; maintain soil description logs | including sample checklists

): Piles must be jacked down using a targeted installation force adjusted dynamically in steps. This value generally reaches of the pile design.

Comprehensive Guide: GeoSS Good Practice for Installation of Jacked Foundation Piles in Singapore