The study of soft soil seismic subsidence based on the 3D OpenSees model
Abstract Soft soils are characterized by high sensitivity, low strength, and susceptibility to seismic subsidence. In this study, nonlinear dynamic finite element analysis was performed using the OpenSees numerical simulation method to evaluate the seismic subsidence response of soft soil sites to g...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-05-01
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| Series: | Geoenvironmental Disasters |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40677-022-00212-7 |
| _version_ | 1829114554146095104 |
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| author | Ping Li Junru Gu Yingci Liu Yuying Li |
| author_facet | Ping Li Junru Gu Yingci Liu Yuying Li |
| author_sort | Ping Li |
| collection | DOAJ |
| description | Abstract Soft soils are characterized by high sensitivity, low strength, and susceptibility to seismic subsidence. In this study, nonlinear dynamic finite element analysis was performed using the OpenSees numerical simulation method to evaluate the seismic subsidence response of soft soil sites to ground motions. Higher peak acceleration of ground motion was found to enhance the degree of uneven seismic subsidence, depth of the seismic depression, and damage to the horizontal surface. The frequency characteristic of ground motion is another factor that influences the seismic subsidence of soft soil. Ground motions with low-frequency contents or high amplitudes lead to a more pronounced seismic subsidence of soft soil, particularly in the case of ground motion that exhibits frequency predominantly close to one of the soil sites. The findings of this study expand the current understanding of seismic subsidence of soft soil. |
| first_indexed | 2024-12-12T15:56:10Z |
| format | Article |
| id | doaj.art-ab536a2d754948bf91697b80fa02a1c6 |
| institution | Directory Open Access Journal |
| issn | 2197-8670 |
| language | English |
| last_indexed | 2024-12-12T15:56:10Z |
| publishDate | 2022-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Geoenvironmental Disasters |
| spelling | doaj.art-ab536a2d754948bf91697b80fa02a1c62022-12-22T00:19:29ZengSpringerOpenGeoenvironmental Disasters2197-86702022-05-019111110.1186/s40677-022-00212-7The study of soft soil seismic subsidence based on the 3D OpenSees modelPing Li0Junru Gu1Yingci Liu2Yuying Li3Hebei Key Laboratory of Earthquake Disaster Prevention and Risk AssessmentSichuan Metallurgical Geological Survey and Design Group Co., LtdInstitute of Disaster PreventionInstitute of Disaster PreventionAbstract Soft soils are characterized by high sensitivity, low strength, and susceptibility to seismic subsidence. In this study, nonlinear dynamic finite element analysis was performed using the OpenSees numerical simulation method to evaluate the seismic subsidence response of soft soil sites to ground motions. Higher peak acceleration of ground motion was found to enhance the degree of uneven seismic subsidence, depth of the seismic depression, and damage to the horizontal surface. The frequency characteristic of ground motion is another factor that influences the seismic subsidence of soft soil. Ground motions with low-frequency contents or high amplitudes lead to a more pronounced seismic subsidence of soft soil, particularly in the case of ground motion that exhibits frequency predominantly close to one of the soil sites. The findings of this study expand the current understanding of seismic subsidence of soft soil.https://doi.org/10.1186/s40677-022-00212-7Ground motionSoft soilSeismic subsidencePeak ground accelerationFrequency |
| spellingShingle | Ping Li Junru Gu Yingci Liu Yuying Li The study of soft soil seismic subsidence based on the 3D OpenSees model Geoenvironmental Disasters Ground motion Soft soil Seismic subsidence Peak ground acceleration Frequency |
| title | The study of soft soil seismic subsidence based on the 3D OpenSees model |
| title_full | The study of soft soil seismic subsidence based on the 3D OpenSees model |
| title_fullStr | The study of soft soil seismic subsidence based on the 3D OpenSees model |
| title_full_unstemmed | The study of soft soil seismic subsidence based on the 3D OpenSees model |
| title_short | The study of soft soil seismic subsidence based on the 3D OpenSees model |
| title_sort | study of soft soil seismic subsidence based on the 3d opensees model |
| topic | Ground motion Soft soil Seismic subsidence Peak ground acceleration Frequency |
| url | https://doi.org/10.1186/s40677-022-00212-7 |
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