Quarterly Report of RTRI
Online ISSN : 1880-1765
Print ISSN : 0033-9008
ISSN-L : 0033-9008
PAPERS
Theoretical Model for Micro-pressure Wave Emission Considering the Effect of Topography around the Tunnel Portal
Tokuzo MIYACHI
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2011 Volume 52 Issue 2 Pages 117-122

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Abstract

This paper introduces a simple prediction model for a micro-pressure wave emitted from a tunnel portal. A theoretical analysis was made of the micro-pressure wave produced when a high-speed train goes through a tunnel, considering the effects of topography around the tunnel portal. Sources of the micro-pressure wave are expressed in the terms of a monopole and a dipole. Model predictions were consistent with the model experiments where the exact Green's function was determined by the method of image.

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© 2011 by Railway Technical Research Institute
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