| Standard | Title | |----------|-------| | | Geotechnical design – General rules | | BCA “Piling” CP 4 (historical reference) | Still referenced for workmanship | | SS EN 12699 | Execution of special geotechnical works – Displacement piles | | LTA Civil Design Criteria | For transport infrastructure projects |
guidelines to manage ground movement and ensure pile integrity. Key Installation and Termination Criteria | Standard | Title | |----------|-------| | |
| Formation | Characteristic | Jacking Suitability | Good Practice Focus | | :--- | :--- | :--- | :--- | | | Soft, high compressibility | Good (smooth penetration) | Avoid soil heave; control rate. | | Old Alluvium | Dense silty sand/gravel | Fair to Difficult | Pre-boring / jetting assistance allowed. | | Residual Soil / Weathered Granite | Stiff to hard, sandy silt | Good | Monitor set-up (thixotropic strength gain). | | | Residual Soil / Weathered Granite |