Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTS
The Jinjiling landslide was obviously deformed after the rainstorm, and preliminary conclusions were drawn through on-site investigation, drilling, geophysical prospecting, deep displacement monitoring and horizontal displacement monitoring. On this basis, in order to further find out the genesis me...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Hydrogeology & Engineering Geology
2023-01-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
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| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202204054 |
| _version_ | 1811169539514171392 |
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| author | Yinlong TAN Wanzhong XU Jiaju CAO Dan LUO Bendong WANG Lijia QIAO Yi ZHOU |
| author_facet | Yinlong TAN Wanzhong XU Jiaju CAO Dan LUO Bendong WANG Lijia QIAO Yi ZHOU |
| author_sort | Yinlong TAN |
| collection | DOAJ |
| description | The Jinjiling landslide was obviously deformed after the rainstorm, and preliminary conclusions were drawn through on-site investigation, drilling, geophysical prospecting, deep displacement monitoring and horizontal displacement monitoring. On this basis, in order to further find out the genesis mechanism of the landslide, this paper interprets the existing survey and monitoring data, combines the Midas-GTS software to analyze the seepage field, displacement field, and stability calculation of the landslide under different working conditions, and comprehensively evaluates its genesis mechanism. The results indicate that (1) geophysical interpretation shows that the Jinjiling landslide is a rock-soil mixed, water-bearing landslide, and the sliding surface is located at the boundary between T2b1 marlstone and T2b2 mudstone. (2) Deep displacement monitoring data reveals that the landslide occurs in a superficial soil mass, and the position of the slip surface is consistent with the location of the slip surface obtained by geophysical exploration. (3) The horizontal displacement monitoring shows that the superficially distributed Houbang landslide and Panjialing landslide have fast deformation rates and stronger deformation. (4) The numerical simulation results show that the Jinjiling landslide is currently in a basically stable state; it is in a basically stable state when the groundwater is drained; it is in a less stable state under heavy rain conditions, which may cause overall slippage, and the Panjialing and Houbang landslides produce secondary soil slippage. (5) The topography, geological structure, stratigraphic lithology of the Jinjiling landslide provide provenance and site conditions for the formation and development of the landslide. Torrential rain and human engineering activities are the inducing factors, which further aggravate the deformation of the landslide. The research results will provide a theoretical basis for the analysis of the genetic mechanism and stability of similar landslides in the Three Gorges Reservoir area, and have important guiding significance for the later control measures. |
| first_indexed | 2024-04-10T16:44:11Z |
| format | Article |
| id | doaj.art-4176da01590341689aadd94a4f6693dd |
| institution | Directory Open Access Journal |
| issn | 1000-3665 |
| language | zho |
| last_indexed | 2024-04-10T16:44:11Z |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj.art-4176da01590341689aadd94a4f6693dd2023-02-08T01:42:17ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652023-01-0150111312110.16030/j.cnki.issn.1000-3665.202204054202204054Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTSYinlong TAN0Wanzhong XU1Jiaju CAO2Dan LUO3Bendong WANG4Lijia QIAO5Yi ZHOU6School of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, ChinaSchool of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, ChinaSchool of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, ChinaChongqing Geological Exploration Bureau 208 Hydrogeology Engineering Geology Team, Chongqing 400700, ChinaSchool of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, ChinaSchool of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, ChinaSchool of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, ChinaThe Jinjiling landslide was obviously deformed after the rainstorm, and preliminary conclusions were drawn through on-site investigation, drilling, geophysical prospecting, deep displacement monitoring and horizontal displacement monitoring. On this basis, in order to further find out the genesis mechanism of the landslide, this paper interprets the existing survey and monitoring data, combines the Midas-GTS software to analyze the seepage field, displacement field, and stability calculation of the landslide under different working conditions, and comprehensively evaluates its genesis mechanism. The results indicate that (1) geophysical interpretation shows that the Jinjiling landslide is a rock-soil mixed, water-bearing landslide, and the sliding surface is located at the boundary between T2b1 marlstone and T2b2 mudstone. (2) Deep displacement monitoring data reveals that the landslide occurs in a superficial soil mass, and the position of the slip surface is consistent with the location of the slip surface obtained by geophysical exploration. (3) The horizontal displacement monitoring shows that the superficially distributed Houbang landslide and Panjialing landslide have fast deformation rates and stronger deformation. (4) The numerical simulation results show that the Jinjiling landslide is currently in a basically stable state; it is in a basically stable state when the groundwater is drained; it is in a less stable state under heavy rain conditions, which may cause overall slippage, and the Panjialing and Houbang landslides produce secondary soil slippage. (5) The topography, geological structure, stratigraphic lithology of the Jinjiling landslide provide provenance and site conditions for the formation and development of the landslide. Torrential rain and human engineering activities are the inducing factors, which further aggravate the deformation of the landslide. The research results will provide a theoretical basis for the analysis of the genetic mechanism and stability of similar landslides in the Three Gorges Reservoir area, and have important guiding significance for the later control measures.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202204054jinjiling landslidemidas-gtsnumerical simulationcausal mechanismsstability analysis |
| spellingShingle | Yinlong TAN Wanzhong XU Jiaju CAO Dan LUO Bendong WANG Lijia QIAO Yi ZHOU Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTS Shuiwen dizhi gongcheng dizhi jinjiling landslide midas-gts numerical simulation causal mechanisms stability analysis |
| title | Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTS |
| title_full | Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTS |
| title_fullStr | Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTS |
| title_full_unstemmed | Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTS |
| title_short | Mechanisms and stability analysis of the Jinjiling landslide in the Three Gorges Reservoir area based on Midas-GTS |
| title_sort | mechanisms and stability analysis of the jinjiling landslide in the three gorges reservoir area based on midas gts |
| topic | jinjiling landslide midas-gts numerical simulation causal mechanisms stability analysis |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202204054 |
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