掲載雑誌（和）： 日本地震工学シンポジウム講演集 Vol： 6巻 年： 1982年 頁： 601-608頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Yoshio TOBITA, Eiji YANAGISAWA タイトル（英）： PREDICTION OF SEISMIC PORE PRESSURE BASED ON INTERNAL CHANGE OF SAND IN SHEAR DEFORMATION 抄録（英）：
The internal change of sand due to the cyclic loadings in the loading stage 1, which is believed to determine the magnitude of the seismic pore pressure of saturated sand, can be expressed by a scalar quantity with good accuracy. A new method of the prediction of the seismic ore■ based on the normalized shear strain, which is a similar definition to the damage parameter proposed by Finn et.al., is discussed in this paper. The involved four material constants in the new method are fully examined based on the fundamental deformation characteristics of sand in the cyclic shearing and specially programmed experimental works. The comperisons of the new method with the published experimental works and other methods of the prediction of the seismic pore pressure are found to be satisfactory. The internal variables which account for the internal change of the fabrics of sand in cyclic shearings are discussed briefly based on the micromechanical consideration of the deformation of granular material like sand. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集