Research on the stability of loess landslides under seismic action based on simplified bishop method
Assessing the stability of loess landslides under seismic action scientifically and reasonably is crucial for reducing earthquake disasters and ensuring the safety of people’s lives and property. To study this issue, we chose the southern part of Fushan County, Shanxi Province as the research area,...
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2024.1490558/full |
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| author | Guirang Hu Guirang Hu Bin Li Bin Li Xiaobing Yan Xiaobing Yan Ruiguo Ren Ruiguo Ren Jinyan Zeng Jinyan Zeng |
| author_facet | Guirang Hu Guirang Hu Bin Li Bin Li Xiaobing Yan Xiaobing Yan Ruiguo Ren Ruiguo Ren Jinyan Zeng Jinyan Zeng |
| author_sort | Guirang Hu |
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| description | Assessing the stability of loess landslides under seismic action scientifically and reasonably is crucial for reducing earthquake disasters and ensuring the safety of people’s lives and property. To study this issue, we chose the southern part of Fushan County, Shanxi Province as the research area, where loess slopes develop and earthquake impacts are strong. Based on the high-precision DEM images of the study area obtained from the unmanned aerial vehicle photogrammetry, we selected 32 representative profiles by sampling according to our principles, and used the simplified Bishop method popular in engineering for modeling and calculation to evaluate the stability of the entire slopes in the area. The calculation results were then statistically analyzed, and the stability and impact range of the slopes were evaluated by means of the graphical form. The results show that in the study area the value of slope safety coefficient (Fs) is mostly within a range of 0.7–1.35 and the value of the avoidance distance is mostly within a range of 5–20 m under a seismic force of 0.20 g, and the slope safety coefficient is mainly determined by the slope angle, and the avoidance distance is mainly determined by the slope height, which is in line with the conclusions of previous research conclusions. In the paper we make a useful attempt for quantitative evaluation of regional seismic loess landslides, and the fact proves that the approach is feasible and efficient, and it can provide quantitative data for major construction projects to avoid landslide disasters. |
| format | Article |
| id | doaj-art-4bb1e5c6f8934d31b6b42d3059282ff0 |
| institution | Kabale University |
| issn | 2296-6463 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj-art-4bb1e5c6f8934d31b6b42d3059282ff02024-11-27T06:33:19ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632024-11-011210.3389/feart.2024.14905581490558Research on the stability of loess landslides under seismic action based on simplified bishop methodGuirang Hu0Guirang Hu1Bin Li2Bin Li3Xiaobing Yan4Xiaobing Yan5Ruiguo Ren6Ruiguo Ren7Jinyan Zeng8Jinyan Zeng9Department of Earthquake Risk Prevention and Control, Shanxi Earthquake Agency, Taiyuan, ChinaNational Continental Rift Valley Dynamic Observatory of Taiyuan, Taiyuan, ChinaDepartment of Earth Sciences and Engineering, Taiyuan University of Technology, Taiyuan, ChinaNational Continental Rift Valley Dynamic Observatory of Taiyuan, Taiyuan, ChinaDepartment of Earthquake Risk Prevention and Control, Shanxi Earthquake Agency, Taiyuan, ChinaNational Continental Rift Valley Dynamic Observatory of Taiyuan, Taiyuan, ChinaDepartment of Earthquake Risk Prevention and Control, Shanxi Earthquake Agency, Taiyuan, ChinaNational Continental Rift Valley Dynamic Observatory of Taiyuan, Taiyuan, ChinaDepartment of Earthquake Risk Prevention and Control, Shanxi Earthquake Agency, Taiyuan, ChinaNational Continental Rift Valley Dynamic Observatory of Taiyuan, Taiyuan, ChinaAssessing the stability of loess landslides under seismic action scientifically and reasonably is crucial for reducing earthquake disasters and ensuring the safety of people’s lives and property. To study this issue, we chose the southern part of Fushan County, Shanxi Province as the research area, where loess slopes develop and earthquake impacts are strong. Based on the high-precision DEM images of the study area obtained from the unmanned aerial vehicle photogrammetry, we selected 32 representative profiles by sampling according to our principles, and used the simplified Bishop method popular in engineering for modeling and calculation to evaluate the stability of the entire slopes in the area. The calculation results were then statistically analyzed, and the stability and impact range of the slopes were evaluated by means of the graphical form. The results show that in the study area the value of slope safety coefficient (Fs) is mostly within a range of 0.7–1.35 and the value of the avoidance distance is mostly within a range of 5–20 m under a seismic force of 0.20 g, and the slope safety coefficient is mainly determined by the slope angle, and the avoidance distance is mainly determined by the slope height, which is in line with the conclusions of previous research conclusions. In the paper we make a useful attempt for quantitative evaluation of regional seismic loess landslides, and the fact proves that the approach is feasible and efficient, and it can provide quantitative data for major construction projects to avoid landslide disasters.https://www.frontiersin.org/articles/10.3389/feart.2024.1490558/fullseismic loess landslideunmanned aircraft systemsimplified bishop methodsafety coefficientseismic hazard evaluation |
| spellingShingle | Guirang Hu Guirang Hu Bin Li Bin Li Xiaobing Yan Xiaobing Yan Ruiguo Ren Ruiguo Ren Jinyan Zeng Jinyan Zeng Research on the stability of loess landslides under seismic action based on simplified bishop method Frontiers in Earth Science seismic loess landslide unmanned aircraft system simplified bishop method safety coefficient seismic hazard evaluation |
| title | Research on the stability of loess landslides under seismic action based on simplified bishop method |
| title_full | Research on the stability of loess landslides under seismic action based on simplified bishop method |
| title_fullStr | Research on the stability of loess landslides under seismic action based on simplified bishop method |
| title_full_unstemmed | Research on the stability of loess landslides under seismic action based on simplified bishop method |
| title_short | Research on the stability of loess landslides under seismic action based on simplified bishop method |
| title_sort | research on the stability of loess landslides under seismic action based on simplified bishop method |
| topic | seismic loess landslide unmanned aircraft system simplified bishop method safety coefficient seismic hazard evaluation |
| url | https://www.frontiersin.org/articles/10.3389/feart.2024.1490558/full |
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