Numerical Analysis and Tests on Vibration Reduction Effects of a New Vibration Isolation Module

The vibration reduction effects of a new vibration module which was composed of double-layer tubular structures and the middle filling material were investigated with the methods of numerical simulation and experiment. The attenuation decibels of the vibration levels were measured and analyzed under various working conditions. It is testified that results of numerical simulation of the soil vibration which are in good agreement with the measured data are credible. It is indicated by the analysis results that the vibration isolation module has good effect on damping vibration in each frequency band. The results can provide references for the design of vibration isolation modules for pier foundation.