– Submit the following to QP (Geotech) before backfilling:
Allows construction compliance near residential zones and schools.
Common defective constructions and typical malpractices are elaborated in industry training courses, with case histories used to stimulate awareness.
GEOSS recommends a vertical deviation tolerance of less than 1 in 100. 2. Continuous Pressing
Artificially inflates or reduces short-term resistance readings.
According to the GeoSS draft guidelines, several proactive measures should be implemented to mitigate the adverse impacts of ground movement:
) for a designated holding time (e.g., 30 seconds) to ensure the tip has stabilized. ⚠️ Key Engineering Risks and GeoSS Mitigations
Calibrated final termination "set" with extended holding times. Termination and "Set" Criteria
The QP must maintain the following essential site and test records and keep them on site at all times:
| Test | Requirement | |------|-------------| | | 1% of piles, up to 1.5× working load (max 2.0× for proof test) | | PDA / high-strain dynamic test | 5% of piles (correlated with jacking records) | | Sonic logging (for large diameter >400 mm) | If specified by design | | Heave monitoring | 2–3 benchmarks near pile group |