Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear Waves
A numerical method is proposed to study the scattering of seismic shear waves induced by the presence of underground cavities in homogeneous soils. The method is based on the superposition of two solutions: the solution of the free-wave propagation problem in a uniform half-space, easily determined...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/934284 |
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| author | G. Lancioni R. Bernetti E. Quagliarini L. Tonti |
| author_facet | G. Lancioni R. Bernetti E. Quagliarini L. Tonti |
| author_sort | G. Lancioni |
| collection | DOAJ |
| description | A numerical method is proposed to study the
scattering of seismic shear waves induced by the presence of underground
cavities in homogeneous soils. The method is based on the superposition
of two solutions: the solution of the free-wave propagation problem in a
uniform half-space, easily determined analytically, and the solution of the
wave scattering problem due to the cave presence, evaluated numerically
by means of an ad hoc code implemented by using the ANSYS Parametric
Design Language. In the two-dimensional setting, this technique is applied
to the case of a single cave, placed at a certain depth from the ground
level. The frequency spectrum of the seismic shear oscillation on the
ground surface is determined for different dimensions and depths of the
cave and compared with the spectrum registered without caves. The
influence of the cave dimensions and depth on the spectrum amplification
is analyzed and discussed. |
| format | Article |
| id | doaj-art-1c4be9ccfd134656825b32c18de2f39b |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-1c4be9ccfd134656825b32c18de2f39b2025-08-20T02:01:51ZengWileyAdvances in Civil Engineering1687-80861687-80942014-01-01201410.1155/2014/934284934284Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear WavesG. Lancioni0R. Bernetti1E. Quagliarini2L. Tonti3Dipartimento di Ingegneria Civile, Edile e Architettura, Universitá Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyDipartimento di Ingegneria Civile, Edile e Architettura, Universitá Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyDipartimento di Ingegneria Civile, Edile e Architettura, Universitá Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyDipartimento di Ingegneria Civile, Edile e Architettura, Universitá Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, ItalyA numerical method is proposed to study the scattering of seismic shear waves induced by the presence of underground cavities in homogeneous soils. The method is based on the superposition of two solutions: the solution of the free-wave propagation problem in a uniform half-space, easily determined analytically, and the solution of the wave scattering problem due to the cave presence, evaluated numerically by means of an ad hoc code implemented by using the ANSYS Parametric Design Language. In the two-dimensional setting, this technique is applied to the case of a single cave, placed at a certain depth from the ground level. The frequency spectrum of the seismic shear oscillation on the ground surface is determined for different dimensions and depths of the cave and compared with the spectrum registered without caves. The influence of the cave dimensions and depth on the spectrum amplification is analyzed and discussed.http://dx.doi.org/10.1155/2014/934284 |
| spellingShingle | G. Lancioni R. Bernetti E. Quagliarini L. Tonti Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear Waves Advances in Civil Engineering |
| title | Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear Waves |
| title_full | Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear Waves |
| title_fullStr | Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear Waves |
| title_full_unstemmed | Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear Waves |
| title_short | Effects of Underground Cavities on the Frequency Spectrum of Seismic Shear Waves |
| title_sort | effects of underground cavities on the frequency spectrum of seismic shear waves |
| url | http://dx.doi.org/10.1155/2014/934284 |
| work_keys_str_mv | AT glancioni effectsofundergroundcavitiesonthefrequencyspectrumofseismicshearwaves AT rbernetti effectsofundergroundcavitiesonthefrequencyspectrumofseismicshearwaves AT equagliarini effectsofundergroundcavitiesonthefrequencyspectrumofseismicshearwaves AT ltonti effectsofundergroundcavitiesonthefrequencyspectrumofseismicshearwaves |