International Society for Soil Mechanics and Geotechnical Engineering Load Test Criteria Allowable pile top settlements are generally limited to at 1.5 times the working load and at 2.0 times the working load.
Recognizes that local builders practice "pre-wetting" and "ponding" before pile installation. The guidelines codify this as the : a 72-hour pre-construction wetting to 80% saturation, followed by CPT testing to measure collapse strain. Pile shaft resistance is then derated using a collapse potential index (Ic).