Modelling of Ground Borne Vibration Induced by Road Transport

Tomas Astrauskas,Raimondas Grubliauskas

doi:10.3846/mla.2017.1060

Tomas Astrauskas, Raimondas Grubliauskas

Open Access

https://doi.org/10.3846/mla.2017.1060

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Abstract

Ground-borne vibrations induced by road transport is common source of environmental problem for residents living near roads where large flow of vehicles is. Any irregular unevenness of road surface increase the transport induced ground borne vibrations. The ground-borne vibrations travel through soil, different types of soil have different properties and transmission loss of vibrations is different. In this paper the spread of ground borne vibration is modelled using numerical modelling and represented using Surfer software. In this research is considered most common soil types in Lithuania: Peat, clay, sandy loam and loam. Calculated soil particle acceleration near vibration source was highest in Clay soil (34,3 mm/s2). The calculations show that in peat soil vibration travel further than in other soils.

Highlights

Transportation is the means to carry people and goods from one place to another
The aim of this research to evaluate what soil of Lithuania has vibration higher transmission loss
In order to apply the above expression for calculating the transmission loss it is necessary to determine fb = c / rk which is a function of wave propagating velocity c and the distance track centre to source point rk. (Banedanmark 2015)

Summary

Introduction

Transportation is the means to carry people and goods from one place to another. This has become very important in each stage of human civilization. Random surface irregularities can result in randomly occurring dynamic forces that are up to 15 percent higher than the corresponding static forces. The impact of these dynamic forces on pavements results in randomly occurring groundborne vibration. Random ground-borne vibration is always present (the pavement is never completely smooth and highway vehicles are never completely dynamically inert), it is too low to be perceived even by observers very close to the source (Hajek et al 2006). This model is mainly used to calculate train induced ground borne vibration, but it is adapted for road transport (Banedanmark 2015). The aim of this research to evaluate what soil of Lithuania has vibration higher transmission loss

Method

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Conclusions