Scaled test bench for the assessment of wave impeding barriers
conference paper
Recently, several cases emerged in the Netherlands where the infrastructure manager was forced to implement
mitigation techniques to reduce the nuisance caused by train traffic. A possible technique to reduce the
vibration propagation without intervening on the track, insuring no traffic interruption, consists of the construction
ofWave Impeding Barriers (WIB). These are made of concrete walls built in the ground, combined
with an isolation (resilient) layer. The concept is to reduce the vibration by introducing a cut–off frequency
due to the impedance mismatch on the horizontal direction of the propagation path. In order to study the efficiency
of WIBs a scale test was developed, within the CargoVibes project [24]. The goal is to test different
WIB compositions (different concrete plates and different isolation layers), in order to optimize the design of
WIBs. This paper deals with the design of the scale test. It presents the theoretical concepts that were used
for the definition of the geometry, as well as a discussion on the requirements, assumptions and limitations
of the proposed test setup
mitigation techniques to reduce the nuisance caused by train traffic. A possible technique to reduce the
vibration propagation without intervening on the track, insuring no traffic interruption, consists of the construction
ofWave Impeding Barriers (WIB). These are made of concrete walls built in the ground, combined
with an isolation (resilient) layer. The concept is to reduce the vibration by introducing a cut–off frequency
due to the impedance mismatch on the horizontal direction of the propagation path. In order to study the efficiency
of WIBs a scale test was developed, within the CargoVibes project [24]. The goal is to test different
WIB compositions (different concrete plates and different isolation layers), in order to optimize the design of
WIBs. This paper deals with the design of the scale test. It presents the theoretical concepts that were used
for the definition of the geometry, as well as a discussion on the requirements, assumptions and limitations
of the proposed test setup
Topics
TNO Identifier
465964
Source title
Proceedings of the International Conference on Noise and Vibration Engineering,ISMA 2012, 17-19 September 2012, Leuven, Belgium
Pages
1263-1276
Files
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