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Spatiotemporal settlement deformation characteristics analysis of rockfill dam with anti-impact FBG sensing array.

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Title: Spatiotemporal settlement deformation characteristics analysis of rockfill dam with anti-impact FBG sensing array.
Authors: Han, Heming1,2 (AUTHOR) hanheming@hfut.edu.cn, Huang, Xingxing2 (AUTHOR) MF20290007@smail.nju.edu.cn, Shi, Bin2 (AUTHOR) shibin@nju.edu.cn, Zhang, Xuedong3 (AUTHOR) ytzxd@iwhr.com, Wei, Guangqing4 (AUTHOR) wgq@nzsensing.com, Zha, Fusheng1 (AUTHOR) geozha@hfut.edu.cn
Source: Acta Geotechnica. Sep2025, Vol. 20 Issue 9, p4803-4816. 14p.
Subjects: Rock deformation, Optical fiber detectors, Spatiotemporal processes, Dikes (Engineering), Emergency management, Deformations (Mechanics), Detectors
Geographic Terms: Jinsha River (China), China
Abstract: With the widespread application of rockfill dams, preventing potential failures in rockfill dams during the construction and operation periods is critically important. Settlement monitoring of rockfill dams is an efficient and feasible method of the disaster prevention. However, the current dam settlement monitoring technology is mostly point-based and has a low survival rate with the rockfill construction condition. To address the issue, the FBG sensing array is proposed to continuously obtain the rockfill dam settlement in space and time. The FBG sensing array employs advanced grating direct writing technology and packaging method, which has the advantages of high sensitivity and impact resistance. Furthermore, tests were conducted to validate the sensor performance. Finally, the proposed method was applied to the settlement monitoring of a rockfill dam on the Jinsha River in Sichuan, China. The research results demonstrate that the installed FBG sensing array successfully captures spatiotemporal continuous settlement data of the rockfill dam. Analysis of on-site monitoring data revealed the spatiotemporal deformation characteristics of the rockfill dam. Intensive rainfall significantly contributed to settlement in the middle and upper parts of the rockfill dam during operation. The proposed method comprehensively captures dam deformation data in advance, which is of great significance for the early warning of dam instability. [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.)
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  Data: Spatiotemporal settlement deformation characteristics analysis of rockfill dam with anti-impact FBG sensing array.
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  Data: <searchLink fieldCode="AR" term="%22Han%2C+Heming%22">Han, Heming</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> hanheming@hfut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Xingxing%22">Huang, Xingxing</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> MF20290007@smail.nju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Shi%2C+Bin%22">Shi, Bin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> shibin@nju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Xuedong%22">Zhang, Xuedong</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> ytzxd@iwhr.com</i><br /><searchLink fieldCode="AR" term="%22Wei%2C+Guangqing%22">Wei, Guangqing</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> wgq@nzsensing.com</i><br /><searchLink fieldCode="AR" term="%22Zha%2C+Fusheng%22">Zha, Fusheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> geozha@hfut.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Acta+Geotechnica%22">Acta Geotechnica</searchLink>. Sep2025, Vol. 20 Issue 9, p4803-4816. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Rock+deformation%22">Rock deformation</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fiber+detectors%22">Optical fiber detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Spatiotemporal+processes%22">Spatiotemporal processes</searchLink><br /><searchLink fieldCode="DE" term="%22Dikes+%28Engineering%29%22">Dikes (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Emergency+management%22">Emergency management</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Detectors%22">Detectors</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Jinsha+River+%28China%29%22">Jinsha River (China)</searchLink><br /><searchLink fieldCode="DE" term="%22China%22">China</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: With the widespread application of rockfill dams, preventing potential failures in rockfill dams during the construction and operation periods is critically important. Settlement monitoring of rockfill dams is an efficient and feasible method of the disaster prevention. However, the current dam settlement monitoring technology is mostly point-based and has a low survival rate with the rockfill construction condition. To address the issue, the FBG sensing array is proposed to continuously obtain the rockfill dam settlement in space and time. The FBG sensing array employs advanced grating direct writing technology and packaging method, which has the advantages of high sensitivity and impact resistance. Furthermore, tests were conducted to validate the sensor performance. Finally, the proposed method was applied to the settlement monitoring of a rockfill dam on the Jinsha River in Sichuan, China. The research results demonstrate that the installed FBG sensing array successfully captures spatiotemporal continuous settlement data of the rockfill dam. Analysis of on-site monitoring data revealed the spatiotemporal deformation characteristics of the rockfill dam. Intensive rainfall significantly contributed to settlement in the middle and upper parts of the rockfill dam during operation. The proposed method comprehensively captures dam deformation data in advance, which is of great significance for the early warning of dam instability. [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.)
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        Value: 10.1007/s11440-025-02612-z
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      – Code: eng
        Text: English
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        StartPage: 4803
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      – SubjectFull: Rock deformation
        Type: general
      – SubjectFull: Optical fiber detectors
        Type: general
      – SubjectFull: Spatiotemporal processes
        Type: general
      – SubjectFull: Dikes (Engineering)
        Type: general
      – SubjectFull: Emergency management
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      – SubjectFull: Deformations (Mechanics)
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      – SubjectFull: Detectors
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      – SubjectFull: Jinsha River (China)
        Type: general
      – SubjectFull: China
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      – TitleFull: Spatiotemporal settlement deformation characteristics analysis of rockfill dam with anti-impact FBG sensing array.
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              M: 09
              Text: Sep2025
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