表層地盤の液状化発生時の地震動強さに関する仮動的実験

概要

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The pseudo-dynamic tests using a torsional shear test apparatus were conducted to investigate more appropriate measure of earthquake ground motions for evaluating liquefaction potential of subsurface sand layers. The tests results on three kinds of sands indicated that the maximum relative velocity was a more appropriate measure for evaluating the intensity of earthquake ground motions at occurrence of liquefaction than .the maximum absolute acceleration which has commonly been used, and that the excess pore water pressure developed in the ground correlated better with maximum relative velocity and the spectrum intensity than the maximum absolute acceleration. These results agreed fairly well with previous findings on the basis of strong ground motion observations.
社団法人日本建築学会の論文
1998-03-30