ABS, the leading provider of classification services to the offshore industry, has published Guidance Notes that includes the first industry best practices on design methodology for dynamically installed piles. The new ABS Guidance Notes on Design and Installation of Dynamically Installed Piles provides a better understanding of the geotechnical and structural performance of piles, enabling engineers to develop safe and efficient pile designs, ABS said in its press release.
Dynamically installed piles are finned piles designed to be released from 20 to 100 m above the seabed and reach velocities from 20 to 25 m/s before self-embedment. The tip penetration is expected to be two to three times the pile length with holding capacity after consolidation ranging from three to six times the pile weight. By referring to the Guidance Notes, engineers are able to minimize uncertainties using methodology that incorporates strain rate and inertia drag for pile design and installation.
The Guidance Notes presents best practices for geotechnical design, structural assessment and installation of dynamically installed piles and includes a method for calculating pile embedment depth in cohesive soil. Engineers using the Guidance Notes have access to useful tools to meet the design criteria specified in the ABS Rules for Building and Classing Offshore Installations, the ABS Rules for Building and Classing Floating Production Installations and the ABS Rules for Building and Classing Mobile Offshore Drilling Units.
About ABS
Founded in 1862, ABS is a leading international classification society devoted to promoting the security of life and property and preserving the natural environment through the development and verification of standards for the design, construction and operational maintenance of marine and offshore assets.