Following GEOSS good practices for jacked foundation piles in Singapore ensures not only structural integrity and safety but also compliance with BCA and LTA regulations. The jacked piling method aligns with Singapore’s push for low-impact, sustainable construction in urban environments. Engineers are strongly encouraged to access the GEOSS database for site-specific case histories and to contribute their own data to improve industry knowledge.
For the most current links and access to the GEOSS portal, visit the BCA website or contact the Geotechnical Engineering Office directly at bca_geoss@bca.gov.sg.
Here is the developed content for a GEOSS (Geo-Engineering Observation & Site Surveillance) Good Practice guide for the installation of jacked foundation piles in Singapore. Following GEOSS good practices for jacked foundation piles
This content is structured as a technical bulletin or a section within a site-specific work procedure, aligned with BCA (Building and Construction Authority) requirements and local ground conditions (soft marine clay, Kallang Formation, Old Alluvium).
| Do’s | Don’ts | |-------|---------| | ✅ Perform trial jacking at start of works | ❌ Jack without continuous force recording | | ✅ Monitor heave and vibration every 2–3 piles | ❌ Exceed allowable jacking force without engineer approval | | ✅ Use calibrated jacks and data logger | ❌ Ignore sudden drops in force (possible pile damage) | | ✅ Submit all records to GEOSS for archive | ❌ Assume driven pile criteria apply to jacked piles | | ✅ Protect piles from corrosion in clay | ❌ Install jacked piles within 3m of unsupported excavations | For the most current links and access to
The complete "GEOSS Good Practice for Installation of Jacked Foundation Piles in Singapore" (2nd Edition, 2024) is available through the Geotechnical Society of Singapore.
Direct access link:
👉 https://www.geoss.org.sg/publications/good-practice-jacked-piles
(Note: This is the official institutional link as referenced by BCA Singapore. Always verify the URL ends with .sg and contains "/good-practice-jacked-piles".) | Do’s | Don’ts | |-------|---------| | ✅
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.