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Numerical study of reduction in ground vibrations by using barriers

Persson, P. LU ; Persson, K. LU and Sandberg, G. LU (2016) In Engineering Structures 115. p.18-27
Abstract

Reduction in traffic-induced ground vibrations by the use of barriers is investigated. The traffic load characteristics were measured for motorway traffic. The effects of parameters on various types of barriers were examined by the use of a finite element model that was calibrated to green-field measurements. The model involved a layered soil and bedrock. The depth of a trench and the elastic modulus of a solid back-fill material were found to be the most important parameters to consider. In investigation of the effects of infiltration of water into an open trench, a coupled finite element formulation of the water and the soil was applied. Infiltration of water was found to decrease the achieved reduction. At long distances from the... (More)

Reduction in traffic-induced ground vibrations by the use of barriers is investigated. The traffic load characteristics were measured for motorway traffic. The effects of parameters on various types of barriers were examined by the use of a finite element model that was calibrated to green-field measurements. The model involved a layered soil and bedrock. The depth of a trench and the elastic modulus of a solid back-fill material were found to be the most important parameters to consider. In investigation of the effects of infiltration of water into an open trench, a coupled finite element formulation of the water and the soil was applied. Infiltration of water was found to decrease the achieved reduction. At long distances from the vibration source, of around 500 m and longer, amplification in vibration level can be seen when a trench has been installed. It was also found, at long distances, that the motion of the ground surface follows the motion of the bedrock.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Finite element method, Fluid-structure interaction, Green-field measurements, Soil dynamics, Vibration reduction, Wave barrier, Wave propagation
in
Engineering Structures
volume
115
pages
10 pages
publisher
Elsevier
external identifiers
  • Scopus:84959345026
  • WOS:000373649300002
ISSN
0141-0296
DOI
10.1016/j.engstruct.2016.02.025
language
English
LU publication?
yes
id
ab5c00bb-246d-4e45-97b7-322214b56d0e
date added to LUP
2016-04-29 14:30:21
date last changed
2016-11-27 04:39:51
@misc{ab5c00bb-246d-4e45-97b7-322214b56d0e,
  abstract     = {<p>Reduction in traffic-induced ground vibrations by the use of barriers is investigated. The traffic load characteristics were measured for motorway traffic. The effects of parameters on various types of barriers were examined by the use of a finite element model that was calibrated to green-field measurements. The model involved a layered soil and bedrock. The depth of a trench and the elastic modulus of a solid back-fill material were found to be the most important parameters to consider. In investigation of the effects of infiltration of water into an open trench, a coupled finite element formulation of the water and the soil was applied. Infiltration of water was found to decrease the achieved reduction. At long distances from the vibration source, of around 500 m and longer, amplification in vibration level can be seen when a trench has been installed. It was also found, at long distances, that the motion of the ground surface follows the motion of the bedrock.</p>},
  author       = {Persson, P. and Persson, K. and Sandberg, G.},
  issn         = {0141-0296},
  keyword      = {Finite element method,Fluid-structure interaction,Green-field measurements,Soil dynamics,Vibration reduction,Wave barrier,Wave propagation},
  language     = {eng},
  month        = {05},
  pages        = {18--27},
  publisher    = {ARRAY(0x93921c0)},
  series       = {Engineering Structures},
  title        = {Numerical study of reduction in ground vibrations by using barriers},
  url          = {http://dx.doi.org/10.1016/j.engstruct.2016.02.025},
  volume       = {115},
  year         = {2016},
}