Ground vibration in the vicinity of a strip load: An elastic layer on a rigid foundation

The transmission of vibrations in the near field of the surface of the ground is investigated theoretically. The mathematical model is two-dimensional, and the interior of the ground is modelled as an elastic layer overlying a rigid foundation (or “bedrock”). The work is divided into two parts: firs...

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Bibliographic Details
Published inJournal of sound and vibration Vol. 152; no. 3; pp. 501 - 515
Main Authors Jones, D.V., Petyt, M.
Format Journal Article
LanguageEnglish
Published London Elsevier Ltd 08.02.1992
Elsevier
Subjects
Applied sciences
Buildings. Public works
Exact sciences and technology
Geotechnics
Soil mechanics. Rocks mechanics
Harmonic
Wave propagation
Mathematical model
Free vibration
Soil mechanics
Railway track
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Summary:The transmission of vibrations in the near field of the surface of the ground is investigated theoretically. The mathematical model is two-dimensional, and the interior of the ground is modelled as an elastic layer overlying a rigid foundation (or “bedrock”). The work is divided into two parts: first, an analysis of the natural modes of free vibration in the layer; and, secondly, the forced response of the layer, for which the surface is assumed to be subjected to a harmonic load acting on a strip of finite width. The solution for the second part is obtained by using a dynamic stiffness matrix analysis. Results presented include the natural mode shapes of free vibration in the layer, attenuation of surface vibration as a function of distance from the load, and the effect on displacement at the centre of the load of varying the load width.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-460X
1095-8568
DOI:10.1016/0022-460X(92)90483-E