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Performance-Based Seismic Assessment of Slope Systems Read chapter Read first chapter

2022 | OriginalPaper | Chapter

Scattering of Incident Plane Waves by Underground Cylindrical Cavity in Unsaturated Poroelastic Medium

Authors : Aichen Zhang, Weihua Li, Fengcui Feng

Published in: Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022)

Publisher: Springer International Publishing

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Abstract

At present, the study of the dynamic characteristics of unsaturated porous media is still in its infancy. Therefore, it is particularly important to study the dynamic characteristics of cavity in unsaturated media, which is similar to the actual situation of cylindrical underground structures such as tunnels are encountered with seismic wave. Based on the dynamic theory of unsaturated porous media considering the mixture theory, analytical solutions are presented for two-dimensional of scattering of plane P-wave and SV-wave by cylindrical cavity by using wave function expansion method. The validity of the solutions is confirmed by comparing with the one in which the infinite medium is assumed as a pure elastic medium. A detailed parametric study is presented to illustrate the effect of saturation, Poisson’s ration, and porosity of the unsaturated poroelastic medium on the dynamic stress concentration factor around the cavity is analyzed.

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previous chapter Accuracy of Complex Moduli in Seismic Response Analysis of Ground
next chapter Dynamic Soil-Structure Interaction for a SDOF with Rigid Foundation Embedded in a Radially Inhomogeneous Bearing Stratum Under SH Waves
Appendix
Available only for authorised users
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Metadata
Title
Scattering of Incident Plane Waves by Underground Cylindrical Cavity in Unsaturated Poroelastic Medium
Authors
Aichen Zhang
Weihua Li
Fengcui Feng
Copyright Year
2022
Book
Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022)

Print ISBN: 978-3-031-11897-5

Electronic ISBN: 978-3-031-11898-2

Copyright Year: 2022

DOI
https://doi.org/10.1007/978-3-031-11898-2_80