Japanese Geotechnical Society Special Publication
Online ISSN : 2188-8027
ISSN-L : 2188-8027
Liquefaction and lateral spreading 1
Evaluation of strain distribution in gradually inclined sandy soil ground caused by liquefaction
Noriaki SentoKiichi TsuchiyaKuyuri AkaogiKenshiro Hoshino
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2024 年 10 巻 16 号 p. 513-516

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In this study, model vibration experiments were conducted in a gravity field to evaluate the effect of an impermeable layer on the flow deformation of the ground based on the strain distribution. A saturated sloping ground was shaken and photographed using a high-speed camera, and the shear and volumetric strains generated in the ground were determined through image analysis. In the experiment, sand eruptions occurred only in the presence of impermeable layers, and the ground below the impermeable layers exhibited expansion behavior near the locations where sand eruptions occurred. Furthermore, the shear and volumetric strains tended to differ in terms of the location of the maximum values and the shape of the depth distribution, depending on the presence of impermeable layers and the effect of sloshing.

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