Results 161 to 170 of about 3,473 (205)
Effect of fracture voids on the swelling behaviour of Callovo-Oxfordian claystone
Engineering Geology, 2021 International audienceThe Callovo-Oxfordian (COx) claystone has been considered as a possible host rock for deep geological repository of high-level radioactive waste in France.
Nathalie Conil, Jean Talandier
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Applied Clay Science, 2019 MX80 bentonite/Callovo-Oxfordian (COx) claystone mixture has been proposed as a sealing/backfilling material in a deep geological repository of radioactive waste in France.
Zhixiong Zeng +2 more
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Applied Clay Science, 2013 International audienceSteels are possible materials for high-level radioactive waste containers used in long-term geological disposal in claystone environments.
Laurent Truche +2 more
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Effect of water content and structural anisotropy on mechanical property of claystone
Applied Clay Science, 2012 International audienceThe mechanical behavior of claystone is sensitive to water content and structural anisotropy. In this paper, the mechanical property of claystone is first investigated by micro-indentation test and mini-compression test, performed ...
Dawei Hu, J F Shao
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The water retention properties of the Callovo-Oxfordian claystone
International Journal of Rock Mechanics and Mining Sciences, 2013Abstract A possible option for the disposal of high level long lived radioactive waste is to store the waste in galleries excavated at great depth in clays or claystones. In such conditions, the walls of the galleries will be successively subjected to desaturation induced by ventilation followed by resaturation once the galleries are closed.
Wan, Min +3 more
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The Misbehavior of the Laramie Formation Claystones
GeoChallenges, 2012The Laramie Formation is the near-surface bedrock over much of the northern Front Range of Colorado. The Late Cretaceous bedrock is characterized by complexly interbedded sandstones and claystones with numerous vertical and lateral facies changes. The Lower Laramie also has coal beds that were mined in the areas near Marshall, Louisville, Lafayette ...
Roy H. Spitzer, Don W. Deere
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Characterization of excavated claystone and claystone–bentonite mixtures as backfill/seal material
Geological Society, London, Special Publications, 2014Abstract Crushed claystone produced by excavation of repository openings has been investigated as backfill/seal material. The raw coarse-grained claystone can be used for backfilling repository openings and, in mixture with bentonite, for sealing boreholes, drifts and shafts.
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On the water sensitivity of claystones
2015ABSTRACT. Growing interest has been devoted to claystones in the framework of research about radioactive waste disposal at great depth. Claystones are weak rocks with significant sensitivity to changes in water content. Various evidences of damage induced either by stress application or by changes in water content have been observed ...
P. Delage +3 more
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Poroplastic damage model for claystones
Applied Clay Science, 2004Abstract The aim of this work is to propose a poroplastic damage model for claystones. Based on experimental results, this model reproduces the effects induced by degradations of the porous matrix after a mechanical loading. First, an anisotropic poroplastic damage model is formulated in order to describe the material degradations.
N Conil +3 more
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Landslide in claystone derived soil
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1979A landslide in a colluvial slope is described that occurred after excavation was made for the construction of a building. The geometry of the landslide mass before and after sliding was able to be established relatively well. Ground-water observations were made for a period 3 months after the slide occurred.
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