Ariake Bay Quick Clays: A Comparison with the General Model

Torrance, J. Kenneth; Ohtsubo, Masami

doi:10.3208/sandf1972.35.11

Cited by 38 publications

(21 citation statements)

References 24 publications

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“…Unlike the Kawasaki mud, both the Osaka and Ariake clays have developed chemical bonding, including cementation, over a long geological history. In the case of the Osaka Bay clay, the bonding agent is assumed to be calcium carbonate (Imai et al 2006), whereas for the Ariake Bay clay, it is iron oxide (Torrance and Ohtsubo 1995). It can be hypothesized that during leaching, acidic water would dissolve the cementation, forming looser structures with larger voids, thus resulting in the greater compressibility of the clays.…”

Section: Discussionmentioning

confidence: 99%

Compressibility of natural soils subjected to long-term acidic contamination

Gratchev

Towhata

2010

Environ Earth Sci

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This paper presents the results of a systematic analysis aimed at establishing whether acidic pore fluids can affect the properties of natural soils, in particular their compressibility. Marine deposits with different mineral compositions and undisturbed soil structure were collected for this research from three coastal areas in Japan. Pleistocene clays from the Osaka and Ariake Bays were obtained from boreholes at a depth of more than 10 m, whereas the Kawasaki mud, a relatively young deposit of Holocene, was dredged from the bed of the Tokyo Bay. Soil specimens were placed in special containers, which were designed to reproduce the process of long-term soilwater-chemical interaction, and leached with solutions of sulfuric acid for different periods of time, ranging from 1 to 9 months. At the end of each time interval, standard compression tests were performed to study the behavior of soil in an acidic environment. It was found that clay mineralogy and soil structure had a significant effect on the compressibility of clays at low pH. In the case of the Osaka and Ariake clays, the compressibility significantly increased with a decrease in pH values, a finding that was primarily attributed to changes in the soil's structure. In contrast, the effect of acidic leaching on the properties of Kawasaki mud was observed to be the opposite. Laboratory data showed that in acidic medium the compressibility of soil decreased presumably due to the collapse of the diffuse double layer.

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Section: Discussionmentioning

confidence: 99%

Compressibility of natural soils subjected to long-term acidic contamination

Gratchev

Towhata

2010

Environ Earth Sci

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“…Although most recent research effort on this topic have taken place in Scandinavia, quick clays continue to pose a hazard in other countries such as Canada (Geertsema and Torrance 2005) and Japan (Torrance and Ohtsubo 1995).…”

Section: Introductionmentioning

confidence: 99%

Relationship between electrical resistivity and basic geotechnical parameters for marine clays

Long

Donohue

L’HeureuxJean-Sebastien

et al. 2012

Can. Geotech. J.

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“…It has been well documented that the sensitivity of Ariake clays is very high (Ariake Bay Research Group 1965, Hong and Tsuchida 1999, and Ohtsubo et al 1982. Torrance and Ohtsubo (1995) have reported that Ariake clays have often a sensitivity larger than 16, with the maximum over 100. Salt removal has been reported to be an important factor for high sensitivity of Ariake clays (Torrance and Ohtsubo 1995).…”

Section: Introductionmentioning

confidence: 97%

Gravitational Sedimentation Behavior of Sensitive Marine Ariake Clays

Zhang

Negami

Guo

2004

Marine Georesources & Geotechnology

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It has been well documented that natural marine Ariake clays are sensitive clays. In this study, extensive data of marine Ariake clays are obtained to investigate the gravitational compression behavior for sensitive clays. Analysis results indicate that the compression behavior of remolded Ariake clays is not different from that of other remolded=reconstituted soils. But natural Ariake clays do not follow the gravitational compression pattern reported by Skempton (1970) for natural sedimentary soils. At a given value of effective overburden pressure, the void ratios of natural Ariake clays are almost independent of liquid limits. Most natural Ariake clays lie above the sedimentation compression line proposed by Burland (1990). When the liquid limit is larger than 90% and the ratio of natural water content over liquid limit ranges 0.8-1.1, the natural Ariake clays lie around the sedimentation compression line. In addition, the natural Ariake clay with higher value of the ratio of natural water content over liquid limit lies above the natural Ariake clay with lower value of the ratio of natural water content over liquid limit. Salt removal is the most probable cause for such a phenomenon.

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Ariake Bay Quick Clays: A Comparison with the General Model

Cited by 38 publications

References 24 publications

Compressibility of natural soils subjected to long-term acidic contamination

Compressibility of natural soils subjected to long-term acidic contamination

Relationship between electrical resistivity and basic geotechnical parameters for marine clays

Gravitational Sedimentation Behavior of Sensitive Marine Ariake Clays

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