Possible Effect of Pressure Solution on the Movement of a Canister in the Buffer of Geological Disposal System
作者: Koichi Shin
刊名: International Journal of Geosciences, 2017, Vol.8 (2), pp.167-180
来源数据库: Scientific Research Publishing Journal
DOI: 10.4236/ijg.2017.82006
原始语种摘要: One of the major concepts of the geological disposal of high level radioactive waste is to enclose a metallic container with bentonite buffer which is considered to be impermeable and chemically stable. Since the average density of the container is around 6 to 7 and very heavy compared to bentonite, the scenario of container sinking has been evaluated because excess sinking makes short the pathway of nuclide migration in the bentonite and is detrimental to the safety of the disposal system. Previous considerations on container sinking have been made from the viewpoint of mechanical deformation of the bentonite. In this paper, a chemical deformation process is presented as another mechanism of container sinking, which has not been previously considered for the container sinking in the...
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  • bentonite 斑脱岩
  • disposal 处理
  • chemical 化学的
  • waste 岩屑
  • sinking 下沉
  • radioactive 放射性的
  • suggested 建议
  • excess 超量
  • through 经过
  • container 容器