Thermo-hydro-mechanical behavior of indurated clay rock for deep disposal of high level radioactive waste

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• 作者：ZHANG Chunliang
• 会议时间：2014-08-24
• 关键词：clay rock ; repository ; deformation ; damage ; reconsolidation ; swelling ; sealing ; thermal impact
• 作者单位：Gesellschaftfür Anlagen-und Reaktorsicherheit (GRS), Repository Safety Research Division,Braunschweig 38122, Germany
• 母体文献：第5届废物地下处置学术研讨会论文集
• 会议名称：第5届废物地下处置学术研讨会
• 会议地点：四川绵阳
• 主办单位：中国岩石力学与工程学会
• 语种：chi

摘要

The indurated Callovo-Oxfordian and Opalinusclay rocks have been comprehensively investigated as host medium for deep disposal of high-level radioactive waste.Their major thermohydro-mechanical propertized are summarized in this paper: 1) fundamental microstructures and porewater state; 2) stressing-induced deformation, damage and reconsolidation as well as permeability changes; 3) swelling capacity and its impact on self-sealing of fractures, water transport and gas migration in resealed and intact conditions, and 4) thermal effects on the integrity of the host formations.