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首页> 外文会议>Waste management 2004 symposium (WM'04): waste management, energy security and a clean environment >REMOTE HANDLING OPERATION TECHNIQUE FOR HIGH-LEVEL RADIOACTIVE WASTE REPOSITORY INVESTIGATION AND PERFORMANCE TEST FOR SEVERAL DIFFERENT EMPLACEMENT CONCEPTS
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REMOTE HANDLING OPERATION TECHNIQUE FOR HIGH-LEVEL RADIOACTIVE WASTE REPOSITORY INVESTIGATION AND PERFORMANCE TEST FOR SEVERAL DIFFERENT EMPLACEMENT CONCEPTS

机译：多种放射性概念的高水平放射性废物处置库远程处理操作技术和性能测试

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摘要

During the operation of repository of high-level radioactive waste,waste package and engineered barrier will be transported from aboveground facility to underground facility,then be emplaced at a certain place of the repository.From the view point of operation safety and radiation safety through this process, technical feasibility for a variety of options for remote handling and remote emplacement of the waste package and engineered barrier must be provided at this moment in our repository program in Japan.In this study,several EBS concepts,especially for different types of buffer material–block,monolith,in- situ compaction,pellet,and pre-assemble(pre-fabrication)–were combined with two emplacement concepts–vertical and horizontal-.Then key technical issues of these different remote operation methods from aboveground facility to underground facility were classified into hard-and soft-ware element. rnAccording to the key technical issues,priority and methodology of investigation and performance test for remote handling and remote emplacement were settled.In this paper the following two concepts were mainly discussed.For the block type buffer material,forming method and condition were investigated. Through a thickear full-scaled bentonite block forming test,a relationship between compaction pressure and density distribution of bentonite was confirmed,and a scale effect of full scale block forming was discussed.A vacuum suction cup was applied to lift the formed block,and several lifting properties and condition were evaluated.Degradation phenomena of formed bentonite block were also investigated under exposure condition of high-temperature with high humidity air,and relation between water content ratio and degradation phenomena was discussed.For the pre-assembled EBS concept,an air pressure used mechanism was investigated the applicability and property to lift and to transport in the underground drift for the heavily assembled module.
机译：在高放废物处置库运行过程中，废物包和工程屏障将由地上设施运至地下设施，然后再放置在处置库的某个位置。从操作安全和辐射安全的角度考虑，目前，我们必须在日本的储存库计划中提供有关废物包装的远程处理和远程安置以及工程屏障的各种选择的过程，技术可行性。在这项研究中，特别是针对不同类型的缓冲材料，采用了多种EBS概念–块，整体，现场压实，造粒和预组装（预制）–与垂直和水平两个安置概念相结合。然后，从地上设施到地下设施的这些不同的远程操作方法的关键技术问题分为硬件和软件元素。 rn针对关键技术问题，确定了远程搬运和远程安置的研究重点和方法以及性能测试。本文主要讨论了以下两个概念。研究了块状缓冲材料的成型方法和条件。通过厚/近全尺寸膨润土块体成型试验，确定了压实压力与膨润土密度分布之间的关系，并讨论了全尺寸块体的结垢效果。用真空吸盘提起成型的块体，并研究了膨润土块体在高温高湿空气暴露条件下的降解现象，并探讨了含水率与降解现象之间的关系。研究了使用气压的机制，以对组装得很重的模块进行提升和在地下漂移中运输。

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  • 来源
  • 会议地点 Tucson AZ(US);Tucson AZ(US)
  • 作者

    R.Masuda; H.Asano; K.Kosuge; H.Takao; T.Yoshida;

  • 作者单位

    Radioactive Waste Management Funding and Research Center(RWMC),No.15.Mori Bldg,2-8-10,Toranomon,Minato-ku,Tokyo 105-0001,JAPAN;

    Radioactive Waste Management Funding and Research Center(RWMC),No.15.Mori Bldg,2-8-10,Toranomon,Minato-ku,Tokyo 105-0001,JAPAN;

    Tohoku University,Department of Bioengineering and Robotics,Aoba-yama 01,Sendai 980-8579,JAPAN;

    JGC Corporation,2-3-1,Minato Mirai,Nishi-ku,Yokohama 220-6001,JAPAN;

    Ishikawajima-Harima Heavy Industries Co.,Ltd,1,Shin-nakahara-cho,Isogo-ku,Yokohama 235-8501,JAPAN;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 废物处理与综合利用;
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