Seismic response and failure characteristics of granite slope using large-scale shaking table test
Huge hazards are frequently caused by earthquake-induced rock avalanche. The study of dynamic response characteristics and failure mechanism of the rock slope in specific geological condition is a challenging issue in geotechnical engineering. In this paper, a shaking table test that reproduces the...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SCIENCE PRESS , 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, PEOPLES R CHINA, 100717
2022-04-01
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| Series: | Rock and Soil Mechanics |
| Subjects: | |
| Online Access: | http://rocksoilmech.whrsm.ac.cn/EN/10.16285/j.rsm.2021.6176 |
| _version_ | 1828335437470498816 |
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| author | ZHOU Ze-hua LÜ Yan SU Sheng-rui DIAO Yu-heng WANG Zuo-peng WANG Jian-kun ZHAO Hui |
| author_facet | ZHOU Ze-hua LÜ Yan SU Sheng-rui DIAO Yu-heng WANG Zuo-peng WANG Jian-kun ZHAO Hui |
| author_sort | ZHOU Ze-hua |
| collection | DOAJ |
| description | Huge hazards are frequently caused by earthquake-induced rock avalanche. The study of dynamic response characteristics and failure mechanism of the rock slope in specific geological condition is a challenging issue in geotechnical engineering. In this paper, a shaking table test that reproduces the Shuiqiuchi rock avalanche was carried out to understand the dynamic response and failure mechanism of rock slope controlled by faults. The testing results show that when the dip angle of the fault is greater than a specific critical angle, part of the reflected and transmitted waves at the discontinuous interface change into sliding waves, resulting in a sudden change in the acceleration response at the fault. The peak acceleration amplification factor inside the model slope presents a significant three-stage trend. Peak horizontal acceleration amplification factor increases obviously with elevation, while peak vertical acceleration amplification factor increases slightly with elevation. The natural frequency curve of the slope model can be divided into three stages with a downward trend, which indicates that the dynamic characteristics of the model have changed. By comparing the shaking table test with the Shuiqiuchi rock avalanche prototype, the main failure mode of the rock slope with fault structure is found as follows: the slope crest first shows vertical tensile cracks under the seismic load, followed by cracking damage of the fragmented rock mass in the hanging wall of the fault, and finally sliding occurs along the fault surface. This research could provide references for the early-warning of granite avalanche, and offer the basic data and scientific support for the development of Qinling Mountain geological heritages. |
| first_indexed | 2024-04-13T21:47:08Z |
| format | Article |
| id | doaj.art-630a591c87a9401187e54254ebdaaa36 |
| institution | Directory Open Access Journal |
| issn | 1000-7598 |
| language | English |
| last_indexed | 2024-04-13T21:47:08Z |
| publishDate | 2022-04-01 |
| publisher | SCIENCE PRESS , 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, PEOPLES R CHINA, 100717 |
| record_format | Article |
| series | Rock and Soil Mechanics |
| spelling | doaj.art-630a591c87a9401187e54254ebdaaa362022-12-22T02:28:32ZengSCIENCE PRESS , 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, PEOPLES R CHINA, 100717Rock and Soil Mechanics1000-75982022-04-0143491893110.16285/j.rsm.2021.6176Seismic response and failure characteristics of granite slope using large-scale shaking table testZHOU Ze-hua0 LÜ Yan1SU Sheng-rui2DIAO Yu-heng3WANG Zuo-peng4WANG Jian-kun5ZHAO Hui6College of Geological Engineering and Geomatics, Chang’an University, Xi’an, Shaanxi 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an, Shaanxi 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an, Shaanxi 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an, Shaanxi 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an, Shaanxi 710054, China China Institute of Geo-Environmental Monitoring, Beijing 100081, ChinaThe National Geopark of Shaanxi Cuihua Mountain, Xi'an, Shaanxi 710105, ChinaHuge hazards are frequently caused by earthquake-induced rock avalanche. The study of dynamic response characteristics and failure mechanism of the rock slope in specific geological condition is a challenging issue in geotechnical engineering. In this paper, a shaking table test that reproduces the Shuiqiuchi rock avalanche was carried out to understand the dynamic response and failure mechanism of rock slope controlled by faults. The testing results show that when the dip angle of the fault is greater than a specific critical angle, part of the reflected and transmitted waves at the discontinuous interface change into sliding waves, resulting in a sudden change in the acceleration response at the fault. The peak acceleration amplification factor inside the model slope presents a significant three-stage trend. Peak horizontal acceleration amplification factor increases obviously with elevation, while peak vertical acceleration amplification factor increases slightly with elevation. The natural frequency curve of the slope model can be divided into three stages with a downward trend, which indicates that the dynamic characteristics of the model have changed. By comparing the shaking table test with the Shuiqiuchi rock avalanche prototype, the main failure mode of the rock slope with fault structure is found as follows: the slope crest first shows vertical tensile cracks under the seismic load, followed by cracking damage of the fragmented rock mass in the hanging wall of the fault, and finally sliding occurs along the fault surface. This research could provide references for the early-warning of granite avalanche, and offer the basic data and scientific support for the development of Qinling Mountain geological heritages.http://rocksoilmech.whrsm.ac.cn/EN/10.16285/j.rsm.2021.6176shuiqiuchi rock avalanchefaultshaking table testseismic responsedynamic failure characteristics |
| spellingShingle | ZHOU Ze-hua LÜ Yan SU Sheng-rui DIAO Yu-heng WANG Zuo-peng WANG Jian-kun ZHAO Hui Seismic response and failure characteristics of granite slope using large-scale shaking table test Rock and Soil Mechanics shuiqiuchi rock avalanche fault shaking table test seismic response dynamic failure characteristics |
| title | Seismic response and failure characteristics of granite slope using large-scale shaking table test |
| title_full | Seismic response and failure characteristics of granite slope using large-scale shaking table test |
| title_fullStr | Seismic response and failure characteristics of granite slope using large-scale shaking table test |
| title_full_unstemmed | Seismic response and failure characteristics of granite slope using large-scale shaking table test |
| title_short | Seismic response and failure characteristics of granite slope using large-scale shaking table test |
| title_sort | seismic response and failure characteristics of granite slope using large scale shaking table test |
| topic | shuiqiuchi rock avalanche fault shaking table test seismic response dynamic failure characteristics |
| url | http://rocksoilmech.whrsm.ac.cn/EN/10.16285/j.rsm.2021.6176 |
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