Hydrodynamic pressure problems in concrete face rockfill dams subjected to earthquakes

  • Zhong-zhi Fu (傅中志)
  • Sheng-shui Chen (陈生水)
  • Guo-ying Li (李国英)


Hydrodynamic pressure is an important load on concrete face rockfill dams (CFRDs) subjected to earthquakes, the influence of which, however, is not clear compared with that in concrete dams. In this paper, the coupling effect between CFRDs and the reservoir water is studied by a series of two-dimensional finite element simulations using a verified procedure. It is found that neglecting the solid-fluid coupling effect not only results in an overestimation of the acceleration response within the rockfill materials but also makes an overestimation of the dynamical stresses in the concrete slabs. A reliable seismic response analysis of CFRDs, therefore, should take the hydrodynamic pressure into account, particularly when the dam is subjected to a simultaneous excitation from both horizontal and vertical directions. Numerical results show, however, that the compressibility of water can be safely neglected in seismic response analyses of CFRDs even when the dam is as high as 300 m, except when the excitation is quite abundant in high frequency contents.

Key words

Concrete face rockfill dam hydrodynamic pressure seismic response earthquake 


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This research work is partially supported by the Ministry of Water Resource, China (Grant No. 201501035).

Supplementary material

42241_2018_145_MOESM1_ESM.docx (15 kb)
Hydrodynamic pressure problems in concrete face rockfill dams subjected to earthquakes


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Copyright information

© China Ship Scientific Research Center 2018

Authors and Affiliations

  • Zhong-zhi Fu (傅中志)
    • 1
    • 2
  • Sheng-shui Chen (陈生水)
    • 1
    • 2
  • Guo-ying Li (李国英)
    • 1
    • 2
  1. 1.Geotechnical Engineering DepartmentNanjing Hydraulic Research InstituteNanjingChina
  2. 2.Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock DamsMinistry of Water ResourceNanjingChina

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