不規則荷重における液状化強度の評価方法と従来の方法による判定結果との比較  [in Japanese] Comparison of liquefaction intensity between standard form and expediency methods in the ground destructions due to earthquake on the basis of the irreguler load  [in Japanese]

Several methods for the judgement of liquefaction which is one of the ground destructions due to earthquake were compared. The methods and theories for the judgement establised by various systems were classified into several groups, and were compared by employing typical techniques. These techniques were, 1) critical N-value and grain size distribution, 2) factor of safety against liquefaction defined in terms of shear stress ratio, and 3) detailed prediction on cyclic triaxial compression test for liquefaction and earthquake response analysis. Particularly, the method, 3), was in detail examined for the possibility of precise judgement. Consequently, the possibility by the cyclic triaxial compression test for liquefaction and the earthquake response analysis by using non-stationaly waves was confirmed.