Scattering of plane P<inf>1</inf> waves and dynamic stress concentration by a lined tunnel in a fluid-saturated poroelastic half-space

Liu, Z; Ju, X; Wu, C; Liang, J

Scattering of plane P<inf>1</inf> waves and dynamic stress concentration by a lined tunnel in a fluid-saturated poroelastic half-space

Liu, Z Ju, X Wu, C

Liang, J

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Publication Type:: Journal Article
Citation:: Tunnelling and Underground Space Technology, 2017, 67 pp. 71 - 84
Issue Date:: 2017-08-01

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Field	Value	Language
dc.contributor.author	Liu, Z	en_US
dc.contributor.author	Ju, X	en_US
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934	en_US
dc.contributor.author	Liang, J	en_US
dc.date.issued	2017-08-01	en_US
dc.identifier.citation	Tunnelling and Underground Space Technology, 2017, 67 pp. 71 - 84	en_US
dc.identifier.issn	0886-7798	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125270
dc.description.abstract	© 2017 The scattering of plane fast compressional waves (P1 waves) by a lined tunnel shallowly embedded in a poroelastic half-space is solved by indirect boundary integration equation method for a poroelastic half space. The displacement amplification on ground surface, dynamic stress concentration within the tunnel, and pore pressure fluctuation on the interface are investigated in the frequency domain, and are also compared with the results of the corresponding unlined cavity. Numerical results illustrate that the scattering of plane P1 waves around the tunnel strongly depends on the porosity of the surrounding medium, frequency and angle of the incident wave, tunnel depth. Significant amplification effect on the surface ground motion and the hoop stress in the tunnel is observed in the case of high-porosity surrounding-rock and undrained interface.	en_US
dc.relation.ispartof	Tunnelling and Underground Space Technology	en_US
dc.relation.isbasedon	10.1016/j.tust.2017.04.017	en_US
dc.subject.classification	Geological & Geomatics Engineering	en_US
dc.title	Scattering of plane P<inf>1</inf> waves and dynamic stress concentration by a lined tunnel in a fluid-saturated poroelastic half-space	en_US
dc.type	Journal Article
utslib.citation.volume	67	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	67	en_US

Abstract:

© 2017 The scattering of plane fast compressional waves (P1 waves) by a lined tunnel shallowly embedded in a poroelastic half-space is solved by indirect boundary integration equation method for a poroelastic half space. The displacement amplification on ground surface, dynamic stress concentration within the tunnel, and pore pressure fluctuation on the interface are investigated in the frequency domain, and are also compared with the results of the corresponding unlined cavity. Numerical results illustrate that the scattering of plane P1 waves around the tunnel strongly depends on the porosity of the surrounding medium, frequency and angle of the incident wave, tunnel depth. Significant amplification effect on the surface ground motion and the hoop stress in the tunnel is observed in the case of high-porosity surrounding-rock and undrained interface.

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http://hdl.handle.net/10453/125270