Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall
Abstract The failure of locked-segment landslides is associated with the destruction of locked segments that exhibit an energy accumulation effect. Thus, understanding their failure mode and instability mechanism for landslide hazard prevention and control is critical. In this paper, multiple instru...
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-88186-y |
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| author | Jingjing Liu Handong Liu Jiaming Luo Jiaxing Chen Hu Wang |
| author_facet | Jingjing Liu Handong Liu Jiaming Luo Jiaxing Chen Hu Wang |
| author_sort | Jingjing Liu |
| collection | DOAJ |
| description | Abstract The failure of locked-segment landslides is associated with the destruction of locked segments that exhibit an energy accumulation effect. Thus, understanding their failure mode and instability mechanism for landslide hazard prevention and control is critical. In this paper, multiple instruments, such as tilt sensors, pore water pressure gauges, moisture sensors, matrix suction sensors, resistance strain gauges, miniature earth pressure sensors, a three-dimensional (3D) laser scanner, and a camera, were used to conduct the physical model tests on the rainfall-induced arch locked-segment landslide to analyze the resulting tilting deformation and evolution mechanism. The results indicate that the tilting deformation characteristics in the locked segment are consistent with the variation in its strain, stress, hydrodynamic responses, and slope morphology, suggesting that tilting deformation can serve as a novel monitoring approach for landslide instability. Further, the tangent angle method and the tilting rate reciprocal method can be utilized to predict the landslide instability based on the landslide tilting deformation curve. The effectiveness of this method is validated in the Huangzangsi dam area, which provides theoretical foundations for understanding the catastrophic mechanism and instability prediction of arch-locked-segment landslides. |
| format | Article |
| id | doaj-art-b9a9e0efde004fc7abc559c024cd0455 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-b9a9e0efde004fc7abc559c024cd04552025-02-02T12:23:32ZengNature PortfolioScientific Reports2045-23222025-01-0115111910.1038/s41598-025-88186-yTilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfallJingjing Liu0Handong Liu1Jiaming Luo2Jiaxing Chen3Hu Wang4College of Geosciences and Engineering, North China University of Water Resources and Electric PowerCollege of Geosciences and Engineering, North China University of Water Resources and Electric PowerCollege of Geosciences and Engineering, North China University of Water Resources and Electric PowerCollege of Geosciences and Engineering, North China University of Water Resources and Electric PowerCollege of Geosciences and Engineering, North China University of Water Resources and Electric PowerAbstract The failure of locked-segment landslides is associated with the destruction of locked segments that exhibit an energy accumulation effect. Thus, understanding their failure mode and instability mechanism for landslide hazard prevention and control is critical. In this paper, multiple instruments, such as tilt sensors, pore water pressure gauges, moisture sensors, matrix suction sensors, resistance strain gauges, miniature earth pressure sensors, a three-dimensional (3D) laser scanner, and a camera, were used to conduct the physical model tests on the rainfall-induced arch locked-segment landslide to analyze the resulting tilting deformation and evolution mechanism. The results indicate that the tilting deformation characteristics in the locked segment are consistent with the variation in its strain, stress, hydrodynamic responses, and slope morphology, suggesting that tilting deformation can serve as a novel monitoring approach for landslide instability. Further, the tangent angle method and the tilting rate reciprocal method can be utilized to predict the landslide instability based on the landslide tilting deformation curve. The effectiveness of this method is validated in the Huangzangsi dam area, which provides theoretical foundations for understanding the catastrophic mechanism and instability prediction of arch-locked-segment landslides.https://doi.org/10.1038/s41598-025-88186-yArch-locked-segment landslideModel testingTilting deformationEvolution processLandslide prediction |
| spellingShingle | Jingjing Liu Handong Liu Jiaming Luo Jiaxing Chen Hu Wang Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall Scientific Reports Arch-locked-segment landslide Model testing Tilting deformation Evolution process Landslide prediction |
| title | Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall |
| title_full | Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall |
| title_fullStr | Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall |
| title_full_unstemmed | Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall |
| title_short | Tilting deformation analysis and instability prediction of arch-locked-segment landslides induced by rainfall |
| title_sort | tilting deformation analysis and instability prediction of arch locked segment landslides induced by rainfall |
| topic | Arch-locked-segment landslide Model testing Tilting deformation Evolution process Landslide prediction |
| url | https://doi.org/10.1038/s41598-025-88186-y |
| work_keys_str_mv | AT jingjingliu tiltingdeformationanalysisandinstabilitypredictionofarchlockedsegmentlandslidesinducedbyrainfall AT handongliu tiltingdeformationanalysisandinstabilitypredictionofarchlockedsegmentlandslidesinducedbyrainfall AT jiamingluo tiltingdeformationanalysisandinstabilitypredictionofarchlockedsegmentlandslidesinducedbyrainfall AT jiaxingchen tiltingdeformationanalysisandinstabilitypredictionofarchlockedsegmentlandslidesinducedbyrainfall AT huwang tiltingdeformationanalysisandinstabilitypredictionofarchlockedsegmentlandslidesinducedbyrainfall |