掲載雑誌（和）： 日本地震工学シンポジウム論文集 Vol： 9-1巻 年： 1994年 頁： 1009-1014頁 著者（和）： 楡井　久，　楠田　隆，　香村　一夫，　風岡　修 タイトル（和）： 液状化層発達過程の各段階 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Hisashi NIREI, Takashi KUSUDA, Kazuo KAMURA, Osamu KAZAOKA タイトル（英）： EACH STAGE ON THE DEVELOPMENT OF LIQUEFIED LAYER 抄録（英）：
As the result of the excavating investigation at the center portion of sand boil such as a volcanic vent caused by liquefaction, a new model is presented as follows. At first, each small mass, well sorting fine materials around groundwater table, under the weakest condition to liquefy in sediments, is resolved partially. As advancing with liquefaction and fluidization horizontally and vertically, the resolving lasses are connected alternately and one liquefaction layer is finally formed. At the same time, the high pressure density-water including sands, gravels, soil fragments, and gas in the layer are ejected pulsatively from underground to surface through the weakest parts. In accordance with the decrease of it's pressure, the materials in the ejecta sink and sediment in order of large specific gravity. Since the formation of vent wall and the stop of ejecting occur simultaneously and the ejecta are contacted vertically or obliquely the liquefied and fluidized layer with the boundary wall of vent, the ejecta in or above the vent are originated from the liquefied and fluidized layer outside the vent wall. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集