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1994”N
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853-858•Å
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PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Hirofumi TOYOTA, Ikuo TOWHATA
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SHAKING TABLE TEST ON LATERAL FLOW OF LIQUEFIED GROUND
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The behavior of lateral flow of liquefied ground is studied in a medium size shaking table, using a submerged model slope made with Toyoura sand. Since the deformation of model grounds at low confining pressure is dilative, the flow created in regular shaking table tests is limited and cannot continue after shaking stops. However, this problem is solved by using a very loose model ground with contractive behavior. The model is made by the moist placement method. In order to trigger the flow of the slope an impact load is applied. A relationship between the velocity of flow and the void ratio is obtained. The results of experiments with free flow triggered by impact load and continuous shaking are also compared.
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