掲載雑誌（和）：	日本地震工学シンポジウム論文集
Vol：	11巻
年：	2002年
頁：	797-802頁
著者（和）：	酒句　教明，安達　俊夫
タイトル（和）：	二方向入力による飽和砂地盤の地震応答
抄録（和）：	-
キーワード（和）：	二方向入力，強軸方向，砂地盤，液状化，仮動的実験，応答速度
掲載雑誌（英）：	THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
著者（英）：	Noriaki Sako, Toshio Adachi
タイトル（英）：	EARTHQUAKE RESPONSE OF SATURATED SANDSIN BI-DIRECTIONAL INPUT MOTION
抄録（英）：	Seismic response of the saturated sand layers subjected to uni-directional and/or bi-directional earthquake excitations were investigated using the pseudo-dynamic testing technique. The apparatus was simple shear test device incorporating two cyclic loaders, which were mutually perpendicular. The test results indicate that 1) a major axis direction in horizontal earthquake motion influencing on liquefaction can not be decided by the characteristic of input earthquake motion only, but it also needs to take the characteristic of subsurface sand layers into consideration. 2) The maximum response acceleration, velocity and displacement by the major axis uni-directional input are good agreement with those by bi-directional input , but there are about 15% difference in the pore water pressure ratio between them.
キーワード（英）：	Bi-directional input, Major axis direction, Sands, Liquefaction, Pseudo-dynamic test, Response velocity
記事区分：	-
区分：	委員会論文集