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- W2372592012 abstract "A large scale shaking table test was conducted for two 1:100 scaled slopes,they had the lithological combinations of hardness-upward or softness-upward formed broadly in 2008 '5.12' Wenchuan Earthquake areas,Sichuan Province,China.Ruled by Buckingham π' s similitude theorem,waves of different kinds,directions and amplitudes were inputted at the base of models.Modal test results based on FEM and instrumental records showed that the model box has enough rigidity,no resonance with model slopes and no amplification effect during shaking.With the more and more importance of vertical ground motion and lack of its test study,here,based on the recorded data,the peak vertical accelerations and their amplification factors along different elevations were mapped under incremental excitation levels,when subjected to sine waves and especially real waves scaled from Wenchuan earthquake waves.Results showed that ① the amplification effect occurs in vertical components with increase in elevations,however,the amplifying speed in the upper part is basically smaller than that in the lower part of model slopes,though the maximum amplification occurs in the middle and upper part;② when excited by Wenchuan earthquake waves,the amplification factors in the upper part decrease gradually to a final stable state but those in the lower part have little change with increase in excitation intensity,so the amplification effect gradually weakens;③ the responses under earthquake waves in combined directions are stronger than those in vertical direction only,but the difference in excitation directions has little effect on the change laws of vertical accelerations;④ the responses of the softness-upward model slope are stronger than those of the hardness-upward model slope.Results provided a good understanding of the damage caused by vertical component of earthquake,and also a guide to select the more reasonable vertical seismic coefficient during slope dynamic stability calculation." @default.
- W2372592012 created "2016-06-24" @default.
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- W2372592012 date "2012-01-01" @default.
- W2372592012 modified "2023-09-28" @default.
- W2372592012 title "Shaking table test for vertical dynamic resonse behavior of layered rock slopes" @default.
- W2372592012 hasPublicationYear "2012" @default.
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