PROCEEDINGS OF TUNNEL ENGINEERING, JSCE
Online ISSN : 1884-9091
ISSN-L : 1345-0832
DYNAMIC RESPONSE ANALYSIS OF SUBWAY-INDUCED VIBRATION ON SHIELD TUNNEL-GROUND SYSTEMS, AND CALCULATION EXAMPLES
Masaru FURUTAFumio NAGASIMA
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JOURNALS FREE ACCESS

1994 Volume 4 Pages 93-100

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Abstract

For the purpose of analyzing vibrations induced by the running of subway railcars, a time history response analysis was made on shield tunnel-ground system modeled by the finite element method. When the results of this analysis were compared with those obtained by measurement, some differences were noted in spectrum, but the differences were only about 3 decibels in vibration level.
As a result of a study made on the effects on the ground in areas adjacent to tunnels using this analytic method, it was seen that vibration acceleration levels of tunnel structures in alluvial ground tended to increase by several decibels, compared with those in diluvial ground, but, conversely, it was seen that ground surface vibration tended to decrease by several decibels.

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© by Japan Society of Civil Engineers
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