Experiment research and numerical simulation on dynamic characteristics of semi-stiff pile composite foundation

The field dynamic experiments on semi-pile foundation are studied. The evolutions of the main-frequency peak-acceleration and maximum horizontal displacement along the piles in different conditions which are single-pile and clump piles composite foundation in pulsating field and blasting loads are analysed. Influencing factors on dynamic characteristics and dynamic response of the semi-pile foundation are analysed. The numerical simulation to test result are computed . the numerical results and test result are in good agreement. A basis is supplied for considering seismic during composite foundation design in the future.