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Title	FIELD VIBRATION MITIGATION BY HONEYCOMB WIB FOR PILE FOUNDATIONS OF A HIGH-SPEED TRAIN VIADUCT
Accession No	00972593
Authors	Takemiya, H
Journal Title	Soil Dynamics and Earthquake Engineering Vol. 24 No. 1
Corp. Authors / Publisher	Elsevier
Publication Date	20040100
Description	p. 69-87; References(27)
Languages	English
Abstract	This paper discusses a new barrier for reducing vibration from a high speed train viaduct. Environmental vibrations from high speed trains are a concern since they can have detrimental effects on residents, sensitive equipment and high-tech production facilities in the vicinity of the train tracks. In this study, aimed at the vibration mitigation for a specific high-tech industrial area, the low-frequency vibrations from a train viaduct are targeted over an anticipated range. A theoretically designed innovative countermeasure called honeycomb wave impeding barrier (WIB) is introduced and its effects are investigated by computer simulation. The present WIB is based on the wave dispersion phenomenon that can modulate the incoming wavelengths into the shorter wavelengths, creating an apparent wave cut-off characteristic in the wave field across WIB installation area. The shorter wavelengths are further impeded due to the impedance ratio of the WIB walls and in-fill materials and are more absorbed by the in-fills. Results from the three-dimensional finite element method simulation show a dramatic vibration reduction effect.
TRT Terms	Acoustic impedance ; Acoustic waves ; Countermeasures ; Environmental engineering ; Finite element method ; High speed trains ; Honeycomb structures ; Industrial areas ; Low frequency ; Pile foundations ; Simulation ; Viaducts ; Vibration ; Vibration control ; Wavelength
Other Terms	Wave impeding barrier
Subject Areas	R02 TRAIN-TRACK DYNAMICS
Availability	Elsevier Find a library where document is available Order Document: http://worldcat.org/issn/02677261
TRIS Files	RRIS
Database	TRIS Online

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