Results 171 to 180 of about 3,473 (205)
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On the Resaturation of Swelling Claystone
2012The hydration of unsaturated Callovo-Oxfordian (COx) claystone specimens from the 490 m deep URL of Bure in France has been investigated in high stress oedometers by conducting hydration tests on unsaturated specimens under stress values that were lower, equal and higher than the in-situ stress (resaturation of swelling clays should be done under in ...
Mehrdokht Mohajerani +5 more
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The Thermal Volume Changes of the Callovo–Oxfordian Claystone
Rock Mechanics and Rock Engineering, 2013There are very few data on the thermoplastic behaviour of claystones, while their knowledge is necessary in understanding long-term behaviour of high-level radioactive waste confining systems. In this paper, a number of thermomechanical parameters of the Callovo–Oxfordian claystone, the possible host rock of radioactive waste in France, are presented ...
Mohajerani, M. +5 more
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Modeling of elastoplastic damage behavior of a claystone
International Journal of Plasticity, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chiarelli, A. S. +2 more
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An experimental study of crack growth in claystones
European Journal of Environmental and Civil Engineering, 2013An experimental study is presented for the characterisation of crack propagation in claystones. Three point bending (TPB) and double torsion (DT) tests are conducted in order to determine the material toughness and crack propagation velocity, respectively.
Y. Huang, S.Y. Xie, J.F. Shao
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A Case History of Expansive Claystone Damage
Journal of the Geotechnical Engineering Division, 1975Over the past 7 yr. nearly –1,000,000 damage has been attributed to expansive soil problems within a square mile tract of rolling hills in Menlo Park, Calif. This area is underlain by massively bedded sandstones and claystones of Eocene age. Residential streets, houses, and swimming pools have been damaged by volume changes or shear deformations of ...
Richard L. Meehan +2 more
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Mechanical Anisotropy of Gas Shales and Claystones
Fourth EAGE Shale Workshop, 2014This abstract/presentation explores mechanical anisotropy of gas shales and claystones and compares the two. The types of anisotropy addressed are 1) static Young’s Modulus anisotropy, 2) static Poisson’s Ratio anisotropy and 3) compressive strength anisotropy.
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Long-term mechanical behavior of claystone
2021For decades, claystone is investigated as a likely host rock material for the deep geological disposal of highly radioactive waste. To ensure safe operation, knowledge about the long-term (thermo-hydro-) mechanical behavior of clay rock is of significant relevance: How will the excavation induced differential stresses gradually dissipate while causing ...
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Slope Failure in Weathered Claystone and Siltstone
Journal of Geotechnical and Geoenvironmental Engineering, 2000This paper describes the failure of an 8.5-m-high fill slope constructed over weathered claystone and siltstone in Martinez, Contra Costa County, in northern California. The failure occurred about 5 months after construction. Several piezometers and inclinometers were installed to measure the pore pressures and the location of the failure surface(s ...
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Heave of a piled foundation on a sulphated claystone
2011A railway bridge founded on massive large diameter piles, socketed into hard anhydritic claystone, experienced a significant heave after construction. Field investigations revealed the presence of a swelling active layer below the piles tip. Heave was explained by the growth of gypsum crystals in discontinuities, a consequence of a previous dissolution
Ramon A., Alonso E.E.
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On the hydro-mechanical behaviour of unsaturated damaged Callovo-Oxfordian claystone
Engineering Geology, 2023Yu-Jun Cui +2 more
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