Publication Abstract




Standard Testing Method for Deflection Characteristics of Pile Driving Cushion Material, (DFI)

Presentation and Comments on DEF's Standard Testing Method for Deflection Characteristics of Pile Driving Cushion Materials
Alan G. MacKinnon, PE

This cushion standard fills a void in the foundation engineering profession by providing a standard testing method for static testing of cushion materials. The standard provides for specimen parameters, apparatus, procedure for testing, calculation methods, and a standard report and curve form. The standard, while intended for static testing, should provide a base from which a meaningful dynamic test method may be derived. The methods are applicable to both hammer cushions and pile cushions, whether they be proprietary or generic in nature.


 article #951; publication #45 (TM-CUSH-1)