掲載雑誌（和）： 土木学会論文集 III 巻： -巻 号： 424/III-14号 頁： 271‐282頁 年： 1990年 月： 12月 著者（和）： - タイトル（和）： 個別要素モデルを用いた液状化地盤の永久変形解析 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： JOURNAL OF GEOTECHNICAL ENGINEERING 著者（英）： タイトル（英）： Analysis of permanent ground deformation due to liquefaction with distinct element model. 抄録（英）：
The permanent displacement of a slope in Noshiro city during the 1983 Nihonkai‐Chubu earthquake is simulated by Distinct Element Analysis. The slope of 2.6 degrees average inclination and 200m length is modeled as 3180 element Distinct Element Model(DEM). A FEM model of 611 quadrilateral elements is utilized to verify the DEM model in the small displacement range. In quasi‐static analysis using lateral seismic coefficients of 0.1〜0.3 both FEM an DEM models are found to give similar failure surface and critical acceleration, i.e., threshold acceleration for initiating failure. Some subsurface layers are supposed to have been liquefied during the earthquake ground motion. In the model, both the stiffness and shearing resistance of these layers are reduced to account for their volumetric change and liquefaction. The movement of the slope due to subsurface soil liquefaction is simulated realistically with the DEM model including vertical crack and settlement at the top of the slope and キーワード（英）： - 記事区分： - 区分 　　　　論文集