Testing device and testing method of pile composite foundation combined with broken stone hardcore foundation

The invention discloses a testing device and testing method of a pile composite foundation combined with a broken stone hardcore foundation. A seismostation full-model dynamic test focuses on researching the displacement, strain and acceleration changes of the foundation form under the action of horizontal dynamic loading, and the dynamic response, the failure mode and the shock absorption characteristic of the foundation form are analyzed and researched. The foundation form is researched by a PIV camera half-model static test in a macroscopic, microcosmic and multiscale mode, the displacement, strain and other responses of the foundation under the action of horizontal and vertical static loading are researched macroscopically, and the bearing mechanism and the failure mode of the foundation form are microcosmically analyzed in the aspect of the particle size according to particle displacement, rotation, the local porosity and other microcosmic parameters. The dynamic model test and the static model test are comprehensively applied, the bearing mechanism and the failure mode of the foundation form can be visually inspected, the shock absorption effect of the foundation form is effectively analyzed, the wider research of the academic world on the foundation form is promoted, and the foundation form can be applied to practical engineering as soon as possible.