Dynamic Response of a Circular Tunnel in an Elastic Half Space
Joint Authors
Coşkun, İrfan
Dolmaseven, Demirhan
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-26
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The vibration of a circular tunnel in an elastic half space subjected to uniformly distributed dynamic pressure at the inner boundary is studied in this paper.
For comparison purposes, two different ground materials (soft and hard soil) are considered for the half space.
Under the assumption of plane strain, the equations of motion for the tunnel and the surrounding medium are reduced to two wave equations in polar coordinates using Helmholtz potentials.
The method of wave expansion is used to construct the displacement fields in terms of displacement potentials.
The boundary conditions associated with the problem are satisfied exactly at the inner surface of the tunnel and at the interface between the tunnel and surrounding medium, and they are satisfied approximately at the free surface of the half space.
A least-squares technique is used for satisfying the stress-free boundary conditions at the half space.
It is shown by comparison that the stresses and displacements are significantly influenced by the properties of the surrounding soil, wave number (i.e., the frequency), depth of embedment, and thickness of the tunnel wall.
American Psychological Association (APA)
Coşkun, İrfan& Dolmaseven, Demirhan. 2017. Dynamic Response of a Circular Tunnel in an Elastic Half Space. Journal of Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1175162
Modern Language Association (MLA)
Coşkun, İrfan& Dolmaseven, Demirhan. Dynamic Response of a Circular Tunnel in an Elastic Half Space. Journal of Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1175162
American Medical Association (AMA)
Coşkun, İrfan& Dolmaseven, Demirhan. Dynamic Response of a Circular Tunnel in an Elastic Half Space. Journal of Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1175162
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1175162