While is still referenced in specifications, it has been superseded or complemented by:
: Features an appendix on partial factors of safety, allowing for factor reductions if rigorous integrity verification tests are performed. Installation and Construction Guidelines While is still referenced in specifications, it has
The rule of thumb from the standard: Unless piles are spaced > 3 diameters center-to-center, group capacity is less than the sum of individual piles. While it acknowledges the limitations of dynamic formulas,
Pile Shaft Strength Requirements (Material and Structural Strength) While is still referenced in specifications
The standard discusses various driving formulas used to estimate pile capacity based on the driving energy and the permanent set (movement per blow). While it acknowledges the limitations of dynamic formulas, it recognizes their utility as a field control tool. It sets forth criteria for determining when a pile has reached "refusal" (the point at which further driving is ineffective or damaging).