Using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case study
Abstract Slopes influenced by multiple faults are prone to large-scale landslides triggered by multi-regional failures. Understanding the failure process and sequence is essential for the sustainable development of mining operations. This paper presents a method combining InSAR monitoring and numeri...
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Nature Portfolio
2025-01-01
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| Online Access: | https://doi.org/10.1038/s41598-025-87420-x |
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| author | Jinduo Li Tianhong Yang Wenxue Deng Shigui Du Penghai Zhang Jia Wang Dongdong Sun Yuan Gao |
| author_facet | Jinduo Li Tianhong Yang Wenxue Deng Shigui Du Penghai Zhang Jia Wang Dongdong Sun Yuan Gao |
| author_sort | Jinduo Li |
| collection | DOAJ |
| description | Abstract Slopes influenced by multiple faults are prone to large-scale landslides triggered by multi-regional failures. Understanding the failure process and sequence is essential for the sustainable development of mining operations. This paper presents a method combining InSAR monitoring and numerical simulation to analyze the failure processes of slopes affected by multiple faults. Using the 298–710 m bench in the central area of the eastern slope of the Nanfen open-pit mine as a case study, the multidimensional small baseline subset (MSBAS) technique of InSAR was employed to calculate the vertical and horizontal deformation time series in the study area, enabling an analysis of the deformation characteristics of multizone bedding sliding. Subsequently, a numerical simulation was performed to replicate the three-dimensional evolution of the multizone failure. The simulation results aligned well with field surveys and InSAR monitoring data. Furthermore, the failure sequence analysis identified critical trigger zones within the region. The findings demonstrate that the proposed method effectively identifies the critical areas and movement sequence of multi-regional failures. In this paper, the faults disrupted the connectivity between slopes, acting as the initial trigger for entire landslide. The first failure occurred in a critical area, creating space for further sliding in other regions and reducing lateral constraints in neighboring areas, eventually leading to significant deformations. Therefore, by using this method to identify potential critical areas before landslides occur, targeted mitigation measures can be implemented to reduce the risk of such events. |
| format | Article |
| id | doaj-art-faa2243a15ed4f328a47046d6ddb58bb |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-faa2243a15ed4f328a47046d6ddb58bb2025-01-26T12:23:46ZengNature PortfolioScientific Reports2045-23222025-01-0115111610.1038/s41598-025-87420-xUsing monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case studyJinduo Li0Tianhong Yang1Wenxue Deng2Shigui Du3Penghai Zhang4Jia Wang5Dongdong Sun6Yuan Gao7Center for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityCenter for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityCenter for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityCenter for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityCenter for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityNanfen Open-pit Iron Mine, Bensteel Group Mining Corporation LimitedSchool of Mining Engineering, University of Science and Technology LiaoningInformation Institute of the Ministry of Emergency Management of PR ChinaAbstract Slopes influenced by multiple faults are prone to large-scale landslides triggered by multi-regional failures. Understanding the failure process and sequence is essential for the sustainable development of mining operations. This paper presents a method combining InSAR monitoring and numerical simulation to analyze the failure processes of slopes affected by multiple faults. Using the 298–710 m bench in the central area of the eastern slope of the Nanfen open-pit mine as a case study, the multidimensional small baseline subset (MSBAS) technique of InSAR was employed to calculate the vertical and horizontal deformation time series in the study area, enabling an analysis of the deformation characteristics of multizone bedding sliding. Subsequently, a numerical simulation was performed to replicate the three-dimensional evolution of the multizone failure. The simulation results aligned well with field surveys and InSAR monitoring data. Furthermore, the failure sequence analysis identified critical trigger zones within the region. The findings demonstrate that the proposed method effectively identifies the critical areas and movement sequence of multi-regional failures. In this paper, the faults disrupted the connectivity between slopes, acting as the initial trigger for entire landslide. The first failure occurred in a critical area, creating space for further sliding in other regions and reducing lateral constraints in neighboring areas, eventually leading to significant deformations. Therefore, by using this method to identify potential critical areas before landslides occur, targeted mitigation measures can be implemented to reduce the risk of such events.https://doi.org/10.1038/s41598-025-87420-xSlope stabilityMulti-zone failureInSARFailure sequenceLandslide |
| spellingShingle | Jinduo Li Tianhong Yang Wenxue Deng Shigui Du Penghai Zhang Jia Wang Dongdong Sun Yuan Gao Using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case study Scientific Reports Slope stability Multi-zone failure InSAR Failure sequence Landslide |
| title | Using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case study |
| title_full | Using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case study |
| title_fullStr | Using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case study |
| title_full_unstemmed | Using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case study |
| title_short | Using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults: a case study |
| title_sort | using monitoring and simulation to analyze the failure characteristics of multizone landslides controlled by faults a case study |
| topic | Slope stability Multi-zone failure InSAR Failure sequence Landslide |
| url | https://doi.org/10.1038/s41598-025-87420-x |
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