Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA Method
Majiagou landslide, a major ancient landslide in Three Gorges Reservoir region, is located in the high earthquake area of southwest China. The 2013 Badong earthquake caused an obvious deformation of landslide monitored by the sliding inclinometer. A strong earthquake may induce the reactivation of a...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6637939 |
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| author | Xiu-Li Zhang Bi-Ting Xie Hao Wang Yu-Yong Jiao |
| author_facet | Xiu-Li Zhang Bi-Ting Xie Hao Wang Yu-Yong Jiao |
| author_sort | Xiu-Li Zhang |
| collection | DOAJ |
| description | Majiagou landslide, a major ancient landslide in Three Gorges Reservoir region, is located in the high earthquake area of southwest China. The 2013 Badong earthquake caused an obvious deformation of landslide monitored by the sliding inclinometer. A strong earthquake may induce the reactivation of ancient landslide. So, it is necessary to research the seismic dynamic response of Majiagou landslide. For this purpose, discontinuous deformation analysis (DDA), improved by introducing the artificial joint and viscous boundary, is applied in this study. The displacements at monitoring points caused by Badong earthquake are calculated and compared with the field data, verifying the numerical method and model. Further, a strong earthquake with the peak acceleration of 1 g is assumed to act on the landside, the initiation and evolution process of landslide is simulated, and the movement features of landslide are discussed. The dynamic failure of landslide and the local amplification of seismic wave can be embodied, indicating that the improved DDA provides an alternative approach for analyzing the seismic dynamic response of jointed rock. |
| format | Article |
| id | doaj-art-19d63800729a440a8c77832e2ec6faf9 |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-19d63800729a440a8c77832e2ec6faf92025-02-03T01:24:38ZengWileyModelling and Simulation in Engineering1687-55911687-56052021-01-01202110.1155/2021/66379396637939Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA MethodXiu-Li Zhang0Bi-Ting Xie1Hao Wang2Yu-Yong Jiao3State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaState Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaState Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, ChinaChina University of Geosciences, Wuhan 430074, ChinaMajiagou landslide, a major ancient landslide in Three Gorges Reservoir region, is located in the high earthquake area of southwest China. The 2013 Badong earthquake caused an obvious deformation of landslide monitored by the sliding inclinometer. A strong earthquake may induce the reactivation of ancient landslide. So, it is necessary to research the seismic dynamic response of Majiagou landslide. For this purpose, discontinuous deformation analysis (DDA), improved by introducing the artificial joint and viscous boundary, is applied in this study. The displacements at monitoring points caused by Badong earthquake are calculated and compared with the field data, verifying the numerical method and model. Further, a strong earthquake with the peak acceleration of 1 g is assumed to act on the landside, the initiation and evolution process of landslide is simulated, and the movement features of landslide are discussed. The dynamic failure of landslide and the local amplification of seismic wave can be embodied, indicating that the improved DDA provides an alternative approach for analyzing the seismic dynamic response of jointed rock.http://dx.doi.org/10.1155/2021/6637939 |
| spellingShingle | Xiu-Li Zhang Bi-Ting Xie Hao Wang Yu-Yong Jiao Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA Method Modelling and Simulation in Engineering |
| title | Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA Method |
| title_full | Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA Method |
| title_fullStr | Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA Method |
| title_full_unstemmed | Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA Method |
| title_short | Study on the Dynamic Response of Landslide Subjected to Earthquake by the Improved DDA Method |
| title_sort | study on the dynamic response of landslide subjected to earthquake by the improved dda method |
| url | http://dx.doi.org/10.1155/2021/6637939 |
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