Centrifuge modeling test on reactivation of ancient landslide under sudden drop of reservoir water and rainfall.
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| Title: | Centrifuge modeling test on reactivation of ancient landslide under sudden drop of reservoir water and rainfall. |
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| Authors: | Zhang, Qiang1 (AUTHOR), Jia, Chaojun2 (AUTHOR) jiachaojun@csu.edu.cn, Chen, Hongjie3 (AUTHOR), Zheng, Yanni2 (AUTHOR), Cheng, Wei4 (AUTHOR) |
| Source: | Acta Geotechnica. Aug2024, Vol. 19 Issue 8, p5651-5672. 22p. |
| Subjects: | Pore water pressure, Rainfall simulators, Earth pressure, Rainfall, Landslides, Inclinometer |
| Abstract: | During the normal operation of the Huangdeng Hydropower Station's reservoir, many tensile cracks were observed on the surface of the bank slope below the elevation of 1805 m along the highway, causing significant damage to local residents' production and lives. On-site geological investigation, surface and inclinometer displacement monitoring were carried out, and the deformation characteristics of the Cheyiping landslide were analyzed. A controllable intensity rainfall simulator and a reservoir water level variation simulation system were designed in our laboratory. The lower section of the highway along the river in Cheyiping small village was chosen as the prototype, and a centrifuge model test of the reactivation of the Cheyiping ancient landslide induced by rainfall and reservoir water level fluctuations was performed. The characteristics of landslide deformation, pore water pressure, and earth pressure variation under the influence of rainfall and reservoir water level changes are investigated. The thorough analysis revealed that, even if the sliding surface is not deep, the sudden drop in reservoir water level remains the primary controlling factor of slope sliding. Because the permeability of the deposit is low, rainfall has a minor impact on this ancient landslide. The experimental results can be used to guide slope prevention and reservoir management in the Huangdeng Reservoir area. [ABSTRACT FROM AUTHOR] |
| Copyright of Acta Geotechnica is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 178968918 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Centrifuge modeling test on reactivation of ancient landslide under sudden drop of reservoir water and rainfall. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Qiang%22">Zhang, Qiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jia%2C+Chaojun%22">Jia, Chaojun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> jiachaojun@csu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Hongjie%22">Chen, Hongjie</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zheng%2C+Yanni%22">Zheng, Yanni</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cheng%2C+Wei%22">Cheng, Wei</searchLink><relatesTo>4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Acta+Geotechnica%22">Acta Geotechnica</searchLink>. Aug2024, Vol. 19 Issue 8, p5651-5672. 22p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Pore+water+pressure%22">Pore water pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Rainfall+simulators%22">Rainfall simulators</searchLink><br /><searchLink fieldCode="DE" term="%22Earth+pressure%22">Earth pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Rainfall%22">Rainfall</searchLink><br /><searchLink fieldCode="DE" term="%22Landslides%22">Landslides</searchLink><br /><searchLink fieldCode="DE" term="%22Inclinometer%22">Inclinometer</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: During the normal operation of the Huangdeng Hydropower Station's reservoir, many tensile cracks were observed on the surface of the bank slope below the elevation of 1805 m along the highway, causing significant damage to local residents' production and lives. On-site geological investigation, surface and inclinometer displacement monitoring were carried out, and the deformation characteristics of the Cheyiping landslide were analyzed. A controllable intensity rainfall simulator and a reservoir water level variation simulation system were designed in our laboratory. The lower section of the highway along the river in Cheyiping small village was chosen as the prototype, and a centrifuge model test of the reactivation of the Cheyiping ancient landslide induced by rainfall and reservoir water level fluctuations was performed. The characteristics of landslide deformation, pore water pressure, and earth pressure variation under the influence of rainfall and reservoir water level changes are investigated. The thorough analysis revealed that, even if the sliding surface is not deep, the sudden drop in reservoir water level remains the primary controlling factor of slope sliding. Because the permeability of the deposit is low, rainfall has a minor impact on this ancient landslide. The experimental results can be used to guide slope prevention and reservoir management in the Huangdeng Reservoir area. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Acta Geotechnica is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=178968918 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11440-023-02217-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 22 StartPage: 5651 Subjects: – SubjectFull: Pore water pressure Type: general – SubjectFull: Rainfall simulators Type: general – SubjectFull: Earth pressure Type: general – SubjectFull: Rainfall Type: general – SubjectFull: Landslides Type: general – SubjectFull: Inclinometer Type: general Titles: – TitleFull: Centrifuge modeling test on reactivation of ancient landslide under sudden drop of reservoir water and rainfall. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Qiang – PersonEntity: Name: NameFull: Jia, Chaojun – PersonEntity: Name: NameFull: Chen, Hongjie – PersonEntity: Name: NameFull: Zheng, Yanni – PersonEntity: Name: NameFull: Cheng, Wei IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 18611125 Numbering: – Type: volume Value: 19 – Type: issue Value: 8 Titles: – TitleFull: Acta Geotechnica Type: main |
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