Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns
To explore the distribution and evolution of the surrounding rock of underground caverns of hydropower stations, the dynamic compression tests for granite sample were carried out and the dynamic constitutive relation suitable to computer programming was established in terms of strain-based static el...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/3265460 |
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| author | Yumin Zhang Zeqi Zhu Rongchao Xu Zhiquan Huang |
| author_facet | Yumin Zhang Zeqi Zhu Rongchao Xu Zhiquan Huang |
| author_sort | Yumin Zhang |
| collection | DOAJ |
| description | To explore the distribution and evolution of the surrounding rock of underground caverns of hydropower stations, the dynamic compression tests for granite sample were carried out and the dynamic constitutive relation suitable to computer programming was established in terms of strain-based static elastic-plastic damage constitutive relation. By inputting five earthquakes of various frequency spectra, the fully nonlinear dynamic analysis was performed for some large underground caverns in the gorge and mountain region in Sichuan Province in China with the explicit difference method. The simulation results show that, as the input seismic waves become strong gradually, the damage zone generally extends deeply from the middle of side walls. The damage zone reaches the maximum value in areas immediately after the seismic acceleration peak arrives and keeps constant thereafter. According to the initial analysis, if the dominant frequency of input wave approaches the natural frequency of underground caverns, the maximum area of damage zone will increase. Those findings may provide practical data for earthquake-resistant design and construction. |
| format | Article |
| id | doaj-art-a859fb575829477db74fe8fdad96e07e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a859fb575829477db74fe8fdad96e07e2025-02-03T01:20:10ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/32654603265460Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground CavernsYumin Zhang0Zeqi Zhu1Rongchao Xu2Zhiquan Huang3School of Resources and Environment, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaState Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaSchool of Resources and Environment, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Resources and Environment, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaTo explore the distribution and evolution of the surrounding rock of underground caverns of hydropower stations, the dynamic compression tests for granite sample were carried out and the dynamic constitutive relation suitable to computer programming was established in terms of strain-based static elastic-plastic damage constitutive relation. By inputting five earthquakes of various frequency spectra, the fully nonlinear dynamic analysis was performed for some large underground caverns in the gorge and mountain region in Sichuan Province in China with the explicit difference method. The simulation results show that, as the input seismic waves become strong gradually, the damage zone generally extends deeply from the middle of side walls. The damage zone reaches the maximum value in areas immediately after the seismic acceleration peak arrives and keeps constant thereafter. According to the initial analysis, if the dominant frequency of input wave approaches the natural frequency of underground caverns, the maximum area of damage zone will increase. Those findings may provide practical data for earthquake-resistant design and construction.http://dx.doi.org/10.1155/2018/3265460 |
| spellingShingle | Yumin Zhang Zeqi Zhu Rongchao Xu Zhiquan Huang Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns Advances in Materials Science and Engineering |
| title | Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns |
| title_full | Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns |
| title_fullStr | Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns |
| title_full_unstemmed | Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns |
| title_short | Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns |
| title_sort | effect of seismic frequency spectra on surrounding rock damage evolution of large underground caverns |
| url | http://dx.doi.org/10.1155/2018/3265460 |
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