Geoss Good Practice For Installation Of Jacked Foundation Piles In Singapore Extra Quality Now

"Set" for jacked piles is defined as the jacking pressure required to advance the pile by a final 10 mm. GEOSS specifies:

[Kallang Formation] --> Soft marine clays (Risk of pile drifting & heave) [Old Alluvium] --> Dense silty sands (High jacking resistance) [Jurong Formation] --> Highly weathered sedimentary rock (Unpredictable refusal) 1. Kallang Formation "Set" for jacked piles is defined as the

Because jack-in machines are exceptionally heavy, the working platform must be high-quality, emphasizing proper compaction and site drainage . 3. Addressing Local Geological Challenges the working platform must be high-quality

For the full GEOSS document (2021 edition) and the latest addendum on jacked piles, visit the Singapore Society for Geotechnical Engineering (SSGE) portal. "Set" for jacked piles is defined as the

Real-time monitoring systems must be deployed around the site perimeter to protect public infrastructure: Monitor Type Target Protected Asset Detect deep lateral soil movement Adjacent MRT tunnels and deep excavations Tiltmeters Measure angular distortion Nearby building facades and boundary walls Ground Settlement Markers Track vertical soil displacement Public roads, water mains, and gas lines Termination Criteria (The "Set" Criteria)

The system monitors verticality continuously in two orthogonal directions using digital spirit levels or transit theodolites.