Dynamic stress state around shallow-buried cavity under transient P wave loads in different conditions

Li, Z; Tao, M; Du, K; Cao, W; Wu, C

Dynamic stress state around shallow-buried cavity under transient P wave loads in different conditions

Li, Z Tao, M Du, K Cao, W Wu, C

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Tunnelling and Underground Space Technology, 2020, 97, pp. 103228-103228
Issue Date:: 2020-03-01

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Field	Value	Language
dc.contributor.author	Li, Z
dc.contributor.author	Tao, M
dc.contributor.author	Du, K
dc.contributor.author	Cao, W
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934
dc.date.accessioned	2020-12-20T03:41:12Z
dc.date.available	2020-12-20T03:41:12Z
dc.date.issued	2020-03-01
dc.identifier.citation	Tunnelling and Underground Space Technology, 2020, 97, pp. 103228-103228
dc.identifier.issn	0886-7798
dc.identifier.uri	http://hdl.handle.net/10453/144863
dc.description.abstract	© 2019 Elsevier Ltd The failure of underground structure is always caused by local stress redistribution resulted from transient impact loads. An analytical model is established and solved by using the complex variable function method to illustrate the dynamic stress concentration around a shallow-buried cavity under transient P wave loads. The transient wave response is attained as an integration of steady-state wave response in circular frequency domain. By adopting a Butterworth filter, the jump points in the dynamic stress concentration factor (DSCF) curve which is not in line with the overall trend is filtered out to obtain more reasonable results. The convergence and accuracy of the solutions are verified and discussed in detail. DSCF distributions of high wavenumber incidences differ from that of low wavenumber incidences significantly in amplitudes and distribution patterns. The effects of the cavity depth, incidence angle and position of wave peak on DSCF distributions are illustrated.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Tunnelling and Underground Space Technology
dc.relation.isbasedon	10.1016/j.tust.2019.103228
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0905 Civil Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Dynamic stress state around shallow-buried cavity under transient P wave loads in different conditions
dc.type	Journal Article
utslib.citation.volume	97
utslib.for	0905 Civil Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
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
utslib.copyright.status	closed_access	*
dc.date.updated	2020-12-20T03:41:07Z
pubs.publication-status	Published
pubs.volume	97

Abstract:

© 2019 Elsevier Ltd The failure of underground structure is always caused by local stress redistribution resulted from transient impact loads. An analytical model is established and solved by using the complex variable function method to illustrate the dynamic stress concentration around a shallow-buried cavity under transient P wave loads. The transient wave response is attained as an integration of steady-state wave response in circular frequency domain. By adopting a Butterworth filter, the jump points in the dynamic stress concentration factor (DSCF) curve which is not in line with the overall trend is filtered out to obtain more reasonable results. The convergence and accuracy of the solutions are verified and discussed in detail. DSCF distributions of high wavenumber incidences differ from that of low wavenumber incidences significantly in amplitudes and distribution patterns. The effects of the cavity depth, incidence angle and position of wave peak on DSCF distributions are illustrated.

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http://hdl.handle.net/10453/144863