Abstract
The long-term safety of high concrete dams has become the focus and central issues of public attention. Deformation is an actual comprehensive reflection of concrete dams. Especially the deformation time-varying effect, is a key index for evaluating the structural behavior, health status, and their evolution of a concrete dam in long-term service. In this paper, causing factors of the deformation time-varying effect of concrete dams were analyzed, and the time-varying effect was divided into two parts, which are the inherent time-varying effect and the time-varying effect caused by the change of dam structural performance. Then, based on the observed dam displacement and the wavelet multi-resolution analysis, causal models for identifying the later deformation time-varying effect and the identification process were proposed. Finally, the efficiency and rationality of the proposed method were verified by two actual concrete dams with runoff reservoir and regulatory reservoir.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Zhu B F. On the expected life span of concrete dams and the possibility of endlessly long life of solid concrete dams (in Chinese). J Hydraul Eng, 2012, 43: 1–9
Ardito R, Maier G, Massalongo G. Diagnostic analysis of concrete dams based on seasonal hydrostatic loading. Eng Struct, 2008, 30: 3176–3185
Yang Q, Pan Y W, Cheng L, et al. Impounding influence of slope and foundation deformation on high arch dam (in Chinese). Chin J Rock Mech Eng, 2015, 34 (Supp2): 3979–3986
Javanmardi F, Léger P. Grouting of cracks in concrete dams: Numerical modelling and structural behaviour. Prog Struct Engng Mater, 2005, 7: 161–173
Wu B B, Wu Z R, Chen B, et al. Crack status analysis for concrete dams based on measured entropy. Sci China Tech Sci, 2016, 59: 777–782
Ehrbar H, Bremen R, Otto B. Gotthard base tunnel-tunnelling in the influence zone of two concrete arch dams. Geomechanik Tunnelbau, 2010, 3: 428–441
Gu C S, Su H Z, Wang S W. Advances in calculation models and monitoring methods for long-term deformation behavior of concrete dams (in Chinese). J Hydroel Eng, 2016, 35: 1–14
Bao T F, Qin D, Zhou X W, et al. Abnormality monitoring model of cracks in concrete dams. Sci China Tech Sci, 2011, 54: 1914–1922
Zhang Z J, Gu C S, Bao T F, et al. Application analysis of empirical mode decomposition and phase space reconstruction in dam time-varying characteristic. Sci China Tech Sci, 2010, 53: 1711–1716
Fan Q X, Li W W, Weng W L. Inspection report of European dams (in Chinese). China Three Gorges, 2010, (3): 39–49
Barla G, Antolini F, Barla M, et al. Monitoring of the Beauregard landslide (Aosta Valley, Italy) using advanced and conventional techniques. Eng Geol, 2010, 116: 218–235
Campos A, López C M, Blanco A, et al. Structural diagnosis of a concrete dam with cracking and high nonrecoverable displacements. J Perform Constr Facil, 2016, 30: 04016021
Zhang G X, Liu Y, Zheng C Y, et al. Simulation of influence of multi-defects on long-term working performance of high arch dam. Sci China Tech Sci, 2011, 54: 1–8
Lu Z C, Zhang J P, Li L B, et al. Analysis on frost deformation of the Fengman concrete gravity dam (in Chinese). J China Inst Water Resour Hydropower Res, 2006, 4: 28–37
Malla S, Wieland M. Analysis of an arch-gravity dam with a horizontal crack. Comp Struct, 1999, 72: 267–278
Pan J W, Xu Y J, Jin F, et al. A unified approach for long-term behavior and seismic response of AAR-affected concrete dams. Soil Dyn Earthq Eng, 2014, 63: 193–202
Liu Y Z, Zhang G X, Cheng H, et al. Mechanism of valley contraction of high arch dam and analysis on its influence to dam deformation and stress. In: Jia J S, Ji J X, Li H Q, et al, eds. In: Proceedings of the 2014 Annual Conference of Chinese National Committee on Large Dams (in Chinese). Zhengzhou: Yellow River Water Conservancy Press, 2014. 51–60
Yu Y, Wang E Z, Zhong J W, et al. Stability analysis of abutment slopes based on long-term monitoring and numerical simulation. Eng Geol, 2014, 183: 159–169
Song J T, Gu C S, Su H Z, et al. Observed displacement data-based identification method of structural damage in concrete dam. Eng Failure Anal, 2016, 66: 202–211
Su H Z, Wen Z P, Sun X R, et al. Time-varying identification model for dam behavior considering structural reinforcement. Struct Safety, 2015, 57: 1–7
Zheng D J, Huo Z Y, Li B. Arch-dam crack deformation monitoring hybrid model based on XFEM. Sci China Tech Sci, 2011, 54: 2611–2617
De Sortis A, Paoliani P. Statistical analysis and structural identification in concrete dam monitoring. Eng Struct, 2007, 29: 110–120
Liu G, Shao Y M, Huang Z M, et al. A new method to separate temperature effect from long-term structural health monitoring data (in Chinese). Eng Mech, 2010, 27: 55–61
Liu X P, Yang H, Sun Z, et al. Separation Study of Bridge Deflection Based on Sigular Value Decomposition (in Chinese). Acta Scientiarum Nat U Sunyatseni, 2013, 52: 11–16
Mata J, Tavares de Castro A, Sá da Costa J. Time-frequency analysis for concrete dam safety control: Correlation between the daily variation of structural response and air temperature. Eng Struct, 2013, 48: 658–665
Xu H Z, Wu Z R, Li X H, et al. Abstracting trend component of dam observation data based on wavelet analysis (in Chinese). Eng J Wuhan Univ, 2003, 36: 5–8
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wang, S., Gu, C. & Bao, T. Observed displacement data-based identification method of deformation time-varying effect of high concrete dams. Sci. China Technol. Sci. 61, 906–915 (2018). https://doi.org/10.1007/s11431-016-9088-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11431-016-9088-9