Abstract:Due to the disadvantages of the eccentric hydraulic vibration pile driving system, such as complicated structure, mass vibration and low energy using, hydraulic vibration technology was applied into the piling system in order to solve the problems above. First of all, by comprehending and analyzing the structure, property and other features of current hydraulic vibrator, the overall structure design of the newtype hydraulic vibrator was carried out. Afterwords, the mathematical model for the motion process of hydraulically excited pile driving system was built and the simulation model of the hydraulic vibration pile driving system was set up based on the AMESim software. The effects of different parameters such as pump delivery, frequency, the length of the pipeline on the dynamic property of the hydraulic vibration pile driving system were studied. At last, the experimental model of the hydraulic vibration pile driving system was designed. By combining the theoretical simulation and the experiment together and comparing the displacement diagram curve under different frequency in experiment and simulation respectively, the similar conclusion was obtained and the correctness of the simulation model of the hydraulic vibration pile driving system was verified.