According to the aggregate requirements of granular material pile,physical tests and large-scale triaxial tests of large-grain diameter regeneration gravel and mixed gravel were conducted. A logarithmic formulation was presented that of the regeneration gravel stress-strain relationship in consideration of common strain range of engineering,and the relationship between the volume strain and the axial strain was close to parabola. The inherent mechanism of experimental phenomena was discussed, it argues that regeneration gravel was suitable as aggregate of pipe-drived sand-gravel pile,and mixed gravel was suitable as aggregate of granular material pile,this tests and results have a referential and promoting value to expand applications of large-grain diameter regeneration grave.