Determination of Interface Hyperbolic Parameter Values

This appendix describes the procedure developed by Clough and Duncan (1971) for the determination of hyperbolic parameter values for interfaces. Hyperbolic parameter values of the interfaces between concrete and dense Density Sand, medium-dense Density Sand, and dense Light Castle Sand are determined based on the results of the initial loading tests presented in Appendix C. Example calculations of hyperbolic parameter values for the interface between dense Light Castle Sand and concrete are presented in the last section of this appendix.