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Theory and methods of global stability analysis for high arch dam

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Abstract

The global stability of high arch dam is one of the key problems in the safety study of arch dams, but no feasible method with theoretical basis is available. In this paper, based on the stability theory of mechanical system, it is demonstrated that the global failure of high arch dams belongs to a physical instability starting from local strength failure, which is the extreme point instability according to the characteristics of load-displacement curve obtained from the failure process of dam-foundation system. So the global failure of dam-foundation system should be studied with the stability theory of mechanical system. It is also pointed out that the current stability analysis methods used in engineering are consistent with the stability theory, but not established according to the mechanical system stability theory directly. A perfect method can be obtained through the study of physical disturbance equations.

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Authors and Affiliations

  1. Department of Engineering Mechanics, Hohai University, Nanjing, 210098, China

    QingWen Ren & Qiang Li

  2. College of Water Conservation and Hydropower Engineering, Hohai University, Nanjing, 210098, China

    YaZhou Jiang

  3. Changjiang Academy of Sciences, Wuhan, 430010, China

    XiaoLan Jiang

Authors
  1. QingWen Ren
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  2. Qiang Li
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  3. YaZhou Jiang
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  4. XiaoLan Jiang
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Correspondence to QingWen Ren.

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Ren, Q., Li, Q., Jiang, Y. et al. Theory and methods of global stability analysis for high arch dam. Sci. China Technol. Sci. 54 (Suppl 1), 9–17 (2011). https://doi.org/10.1007/s11431-011-4624-5

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  • DOI: https://doi.org/10.1007/s11431-011-4624-5

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