Mechanical Behavior of Anisotropic Sand Ground Beneath Structures Subjected to Cyclic Loading Such as Wave Loading

Kawamura, Shima; Miura, Seiichi; Yokohama, Shoji

doi:10.3208/sandf.50.645

Cited by 6 publications

(8 citation statements)

References 25 publications

(30 reference statements)

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Section: Test Apparatus and Test Proceduresmentioning

confidence: 92%

“…Kawamura et al, 1999Kawamura et al, , 2010Miura et al, 1995). In addition, it was also confirmed that the effect of the development of pore water pressure on bearing capacity was very low for CAL tests (Kawamura et al, 2010). In this study, furthermore, the Bearing capacity improvement of anisotropic sand ground Kawamura and Miura appropriate method of construction of side walls and sheet piles on anisotropic ground was discussed.…”

Section: Test Apparatus and Test Proceduresmentioning

confidence: 92%

“…The water level was raised to 5 mm from the ground surface. The details of the construction procedure have been described by Abe et al (2011) and Kawamura et al (2010).…”

Section: Test Apparatus and Test Proceduresmentioning

confidence: 99%

“…Butterfield and Gottardi, 1994) was useful to evaluate the stability of the structure-anisotropic ground system (Kawamura and Miura, 2003;Yokohama et al, 2002), and clarified the dependency of fabric anisotropy on the predominant direction of ground deformation (Kawamura et al, 2010).…”

Section: Introductionmentioning

confidence: 98%

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Bearing capacity improvement of anisotropic sand ground

Kawamura

Miura

2014

Proceedings of the Institution of Civil Engineers - Ground Impr

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Bearing capacity of anisotropic sand beds beneath structures subjected to monotonic and cyclic loadings was experimentally elucidated. Using a model ground of Toyoura sand prepared by the air-pluviation method, a series of loading tests on model structures under several foundation conditions was carried out. Firstly, the effect of fabric anisotropy on bearing capacity and its mobilisation mechanism was revealed, and secondly the applicability of countermeasures constructed by side walls and sheet piles on the bearing capacity was investigated on sand deposits with fabric anisotropy. The test results showed that fabric anisotropy of sand deposits affects the bearing capacity remarkably under monotonic and cyclic loading conditions, and that constructions of side wall and sheet piles are advantageous as countermeasures against ground failures, although their prevention effects on bearing capacity vary with the changes in depositional conditions.

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Section: Test Apparatus and Test Proceduresmentioning

confidence: 92%

Section: Test Apparatus and Test Proceduresmentioning

confidence: 92%

“…The water level was raised to 5 mm from the ground surface. The details of the construction procedure have been described by Abe et al (2011) and Kawamura et al (2010).…”

Section: Test Apparatus and Test Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Bearing capacity improvement of anisotropic sand ground

Kawamura

Miura

2014

Proceedings of the Institution of Civil Engineers - Ground Impr

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“…Additionally, note that the pore water pressure value obtained from the model test can be similarly evaluated as a true value. Consequently, reproduction by model testing is theoretically enabled, although the assumption that a model and a natural physical phenomenon occur in the same mechanism is required (Kawamura, Miura, & Yokohama, 2010b;. The correlation between model and prototype in this study is summarized in Table 2.…”

Section: Test Proceduresmentioning

confidence: 97%

Stability of Volcanic Slopes in Cold Regions

Kawamura¹,

Miura²

2014

JGG

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Rainfall-and earthquake-induced failures of slopes formed by volcanic soils occur frequently in Hokkaido, Japan. This study aims at clarifying failure mechanisms of volcanic slopes caused by both rainfall and freeze-thaw action in cold regions such as Hokkaido. Additionally, the mechanical behavior of volcanic slopes pre-deformed due to cyclic loadings such as seismic loadings were examined to elucidate the effect of initial water content on rainfall-induced failure of volcanic slopes. Using model slopes of different shapes constructed with volcanic soils, a series of model tests was conducted under several conditions in which spray nozzles and a shaking table were used to simulate rainfall intensity and cyclic loadings. Test results showed that surface failure of volcanic slopes differed depending strongly on their initial moisture content. Based on the results of model testing, the effects of freezing and thawing and cyclic loadings on mechanisms of rainfall-induced failure were drawn upon to propose an evaluation method for slope stability. The model test results indicated that rainfall-induced failure can be uniquely assessed by changes in water content in zones subjected to freezing and thawing or to shearing deformation due to cyclic loadings.

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