Geoss Good Practice For Installation Of Jacked Foundation Piles In Singapore Link [patched]

Headline:

🇸🇬 Elevating Ground Engineering Standards: GEOSS Good Practice for Jacked Foundation Piles

GeoSS Guideline on Jacked Piles

According to the , essential practices include: Site investigation : A thorough site investigation is

1. Site investigation: A thorough site investigation is essential to determine the soil conditions and identify potential issues.
2. Pile design: The pile design should take into account the soil conditions, pile material, and load requirements.
3. Installation procedures: The installation process should follow a systematic approach, including pile seating, jacking, and grouting.

| Parameter | Good Practice Limit | GEOSS Trigger (Action Required) | |-----------|--------------------|----------------------------------| | Jacking rate | 0.5 – 1.5 m/min | >2 m/min (reduce rate, check hydraulic oil temp) | | Max jacking force | ≤ 80% of pile structural capacity | >85% – stop jacking, assess toe damage | | Heave of adjacent ground | < 10 mm | 10–25 mm – reduce jacking rate; >25 mm – stop, grout relief holes | | Pile verticality | < 0.5% deviation | >1% – de-jack, re-align; >2% – abandon pile | | Hydraulic pressure spike | < 15% of steady pressure | >15% – inspect pile head & shoe | | Parameter | Good Practice Limit | GEOSS

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. 2 m/min (reduce rate