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Volume 34 Issue 1
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Abstract
References
XU Bin, ZOU De-gao, KONG Xian-jing, DONG Guang-hui. Seismic stability of slopes of high rockfill dams[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(1): 139-144.
Citation: XU Bin, ZOU De-gao, KONG Xian-jing, DONG Guang-hui. Seismic stability of slopes of high rockfill dams[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(1): 139-144.
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Seismic stability of slopes of high rockfill dams

  • 1. The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China; 2. School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China ）

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  • Received Date: November 10, 2010
  • Published Date: January 19, 2012
    Graphical Abstract
    • Abstract
  • By using the dynamic finite element stability and deformation method, the definite methods for the most dangerous sliding surface, the influences of seismic duration and depth of sliding surface on slope stability and deformation as well as the reinforcement range of dam slopes are studied. The results show that by means of the pseudo-static method, the slip circle corresponding to the minimum safety factor is deeper and the slip range is larger owing to the fact that the acceleration distribution coefficient suggested by the Chinese Code does not match the seismic response of dams. It is not helpful for determining the reinforcement range of dam slopes. During the earthquake history, the potential sliding surface varies with the time history, and it should be arbitrarily searched by using the dynamic finite element method. The potential sliding surface corresponding to the minimum safety factor is different from the maximum slippage. The estimation of the stability safety of dam slopes should combine the safety factor with the deformation. The reinforcement range of dam slopes is suggested according to the calculated results.
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    • References (15)
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