REDUCTION OF VEHICLE-INDUCED VIBRATION USING LIQUEFIED STABILIZED SOIL

Hanoi is the capital and second largest city in Vietnam. The process of urbanization poses numerous challenges to transportation systems such as traffic congestion and air pollution. The current situation calls for the development of comprehensive urban public transport systems. In addition, many urban areas and high-rise buildings have been constructed with high population density. On the other hand, the traffic-induced vibrations may cause structural damage and even failure and collapse of the structure. Therefore, the Liquefied Stabilized Soil (LSS) may be one of the effective methods to solve the problems. In this study, a numerical investigation was performed to evaluate the reduction of the ground vibrations due to passing vehicles. Particularly, the finite element (FE) model of a two-dimensional soil-structure system is considered. The model includes the cross-section of a route, the foundation ground, the backfill material, a nearby building with eight floors and one basement. The analysis results show that the using of LSS as backfilling material can reduce the ground vibration caused by passing vehicles.