Abstract: To explore the time-history response laws of pile foundation under different types of seismic waves, the pile acceleration of rock-socketed single pile foundation, relative displacement of pile top, bending moment of pile body and damage of pile foundation under the action of artificially synthesized 5010 waves, 5002 waves, Kobe waves and El-Centro waves with an intensity of 0.35g were studied through the shaking table test. The test results show that the dynamic response characteristics of rock-socketed single pile foundation are related to the spectrum characteristics of input seismic waves. The acceleration response of the pile top significantly lags behind that of the pile bottom, and the peak acceleration of the pile reaches the maximum value under the action of El-Centro waves. The relative displacement of the pile top is the largest when inputting Kobe waves, and the peak value appears earliest when inputting El-Centro waves. The maximum bending moment of the pile does not exceed the bending bearing capacity of the pile foundation, and there is no damage to the pile foundation. In the anti-seismic design of pile foundation, the type of seismic waves can be reasonably selected according to the corresponding checking content, and the corresponding engineering suggestions are proposed.

Key words: piles foundation, strong earthquake, shaking table test, time-history response