ON THE EFFECTIVENESS OF EPS UNDERGROUND WALL IN REDUCING TRAFFIC-INDUCED VIBRATIONS

Abstract

With the expansion of the elevated road network in urban areas, there has been a strong demand for reduction of traffic-induced vibrations. However, an effective vibration reduction technique is not yet established. This study investigates the effectiveness of EPS (expanded polystyrol) underground wall in reducing traffic-induced vibrations. Firstly, a series of model vibration test is performed to obtain the dynamic characteristics of EPS. Secondly, we constructed an EPS underground wall, and conducted field vibration tests using a test car. Finally FEM simulation analyses were carried out and the comparison between the test results and analytical ones were made.