›› 2010, Vol. 31 ›› Issue (S1): 41-47.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study of maximum aseismic capability of high earth-rock dam on deep riverbed alluviums

ZHAO Jian-ming，WEN Yan-feng，LIU Xiao-sheng，CHEN Ning，CHANG Ya-ping，LIU Qi-wang，WANG Hong   

  1. China Institute of Water Resources and Hydropower Research, Beijing 100048, China
  • Received:2010-04-18 Online:2010-08-10 Published:2010-09-09

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Abstract:

Based on the developed 3D authentic nonlinear effective stress dynamic analysis method of high earth-rock dam, the analysis method to evaluate the maximum aseismic capability of high earth core rockfill dam is proposed considering the characteristics of high earth–rock dam on deep riverbed alluviums located in the strong earthquake area. The maximum aseismic capability is studied and evaluated by focusing the emphasis on the stability, deformation and safety of the impervious core and impervious wall in riverbed alluviums which should be the decisive factors on the aseismic safety of high earth–rock dam on deep riverbed alluviums. The proposed method has been successfully applied to the maximum aseismic capability evaluation of Changheba high earth core rock-fill dam with several evaluation standards discussed. Based on the comprehensive study results including dam slope dynamic stability, earthquake-induced permanent deformation, liquefaction potential, element aseismic safety and aseismic safety of the impervious core and impervious wall, the maximum aseismic capability of Changheba high earth core rockfill dam is evaluated as about 0.50-0.55 g.

Key words: high earth-rock dam, maximum aseismic capability, deep riverbed alluvium, dynamic stability of dam slope, earthquake-induced permanent deformation

CLC Number: 

  • TV 641.1
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