Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels
Seismic behavior of long circle tunnels is significantly influenced by the nature of input motion. This study, based on the 3D finite-element method (FEM), evaluates the effects of spatially varying seismic ground motions and uniform input seismic ground motions and their incident angles on the diam...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/8195396 |
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| _version_ | 1849692509917151232 |
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| author | Yundong Zhou Yongxin Wu Ziheng Shangguan Zhanbin Wang |
| author_facet | Yundong Zhou Yongxin Wu Ziheng Shangguan Zhanbin Wang |
| author_sort | Yundong Zhou |
| collection | DOAJ |
| description | Seismic behavior of long circle tunnels is significantly influenced by the nature of input motion. This study, based on the 3D finite-element method (FEM), evaluates the effects of spatially varying seismic ground motions and uniform input seismic ground motions and their incident angles on the diameter strain rate and tensive/compressive principal stresses under different strata. It is found that (1) the spatially varying seismic ground motions induced larger diameter strain rate (radially deformation) than the uniform input seismic motion, (2) the spatially varying seismic ground motions had an asymmetric effect on the radial strain rate distributions, and (3) the rising incident angles changed the pure shear stress state into a complex stress state for tunnels under specified input motion. |
| format | Article |
| id | doaj-art-ee7481070eca435da1fd366d35d3478f |
| institution | DOAJ |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-ee7481070eca435da1fd366d35d3478f2025-08-20T03:20:40ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/81953968195396Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long TunnelsYundong Zhou0Yongxin Wu1Ziheng Shangguan2Zhanbin Wang3Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaSeismic behavior of long circle tunnels is significantly influenced by the nature of input motion. This study, based on the 3D finite-element method (FEM), evaluates the effects of spatially varying seismic ground motions and uniform input seismic ground motions and their incident angles on the diameter strain rate and tensive/compressive principal stresses under different strata. It is found that (1) the spatially varying seismic ground motions induced larger diameter strain rate (radially deformation) than the uniform input seismic motion, (2) the spatially varying seismic ground motions had an asymmetric effect on the radial strain rate distributions, and (3) the rising incident angles changed the pure shear stress state into a complex stress state for tunnels under specified input motion.http://dx.doi.org/10.1155/2018/8195396 |
| spellingShingle | Yundong Zhou Yongxin Wu Ziheng Shangguan Zhanbin Wang Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels Advances in Civil Engineering |
| title | Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels |
| title_full | Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels |
| title_fullStr | Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels |
| title_full_unstemmed | Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels |
| title_short | Effects of Spatially Varying Seismic Ground Motions and Incident Angles on Behavior of Long Tunnels |
| title_sort | effects of spatially varying seismic ground motions and incident angles on behavior of long tunnels |
| url | http://dx.doi.org/10.1155/2018/8195396 |
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