Experimental Study on the Absorbed Water for Micro-Seepage

Sato, Kuniaki; Murota, Akira

doi:10.2208/jscej1969.1971.195_67

Cited by 4 publications

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“…They obtained values of R by analyzing experimental results described above from the viewpoint of hydrodynamics. Those studies (Sato, 1971;Sato and Murota, 1971) proposed R = 79 for bentonite clay and R = 14 for silty clay. Van Olphen (1991) described numerous prior studies of the density and viscosity of absorbed water near the clay particles.…”

Section: +mentioning

confidence: 99%

“…For this study, the parameter R value is referred from Sato (1971) and Sato and Murota (1971). Those studies conducted permeability tests of some kinds of soil material such as silt, clay, and bentonite in conditions of a very low hydraulic gradient.…”

Section: +mentioning

confidence: 99%

“…(10) and (11). Based on results of previous studies (Sato, 1971;Sato and Murota, 1971), this study assumes R = 14 and 79 because bentonite-based backfill of which the bentonite content is within 20% and 50% is an osculant material of bentonite clay and silty clay.…”

Section: +mentioning

confidence: 99%

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Predicting hydraulic conductivity of sand–bentonite mixture backfill before and after swelling deformation for underground disposal of radioactive wastes

Komine

2010

Engineering Geology

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Section: +mentioning

confidence: 99%

Section: +mentioning

confidence: 99%

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Predicting hydraulic conductivity of sand–bentonite mixture backfill before and after swelling deformation for underground disposal of radioactive wastes

Komine

2010

Engineering Geology

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“…where L is a constant, L = 79 [32]. In this study, the viscosity coefficient of montmorillonite interlayer water is assumed to be the same as the viscosity coefficient of water adsorbed on the clay surface.…”

Section: Dependence Of Hydraulic Conductivity On Montmorillonite Cont...mentioning

confidence: 99%

Changes of Temperature and Moisture Distribution over Time by Thermo-Hydro-Chemical (T-H-C)-Coupled Analysis in Buffer Material Focusing on Montmorillonite Content

Ouchi,

Sato

2024

Minerals

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Bentonite is used as a buffer material in engineered barriers for the geological disposal of high-level radioactive waste. The buffer material will be made of bentonite, a natural clay, mixed with silica sand. The buffer material is affected by decay heat from high-level radioactive waste, infiltration of groundwater, and swelling of the buffer material. The analysis of these factors requires coupled analysis of heat transfer, moisture transfer, and groundwater chemistry. The purpose of this study is to develop a model to evaluate bentonite types and silica sand content in a unified manner for thermo-hydro-chemical (T-H-C)-coupled analysis in buffer materials. We focused on the content of the clay mineral montmorillonite, which is the main component of bentonite, and developed a model to derive the moisture diffusion coefficient of liquid water and water vapor based on Philip and de Vries, and Kozeny–Carman. The evolutions of the temperature and moisture distribution in the buffer material were analyzed, and the validity of each distribution was confirmed by comparison with the measured data obtained from an in situ experiment at 350 m in depth at the Horonobe Underground Research Center, Hokkaido, Japan.

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Modeling Hydraulic Conductivity and Swelling Pressure of Several Compacted Bentonites Affected by Salinity of Water

Tanaka¹,

Hasegawa²,

Nakamura³

2009

JSCE JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING

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Experimental Study on the Absorbed Water for Micro-Seepage

Cited by 4 publications

References 0 publications

Predicting hydraulic conductivity of sand–bentonite mixture backfill before and after swelling deformation for underground disposal of radioactive wastes

Predicting hydraulic conductivity of sand–bentonite mixture backfill before and after swelling deformation for underground disposal of radioactive wastes

Changes of Temperature and Moisture Distribution over Time by Thermo-Hydro-Chemical (T-H-C)-Coupled Analysis in Buffer Material Focusing on Montmorillonite Content

Modeling Hydraulic Conductivity and Swelling Pressure of Several Compacted Bentonites Affected by Salinity of Water

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