乏燃料深钻孔处置安全试评价

辐射防护 ›› 2020, Vol. 40 ›› Issue (4): 325-330.

乏燃料深钻孔处置安全试评价

李星宇, 王旭宏, 杨球玉, 吕涛, 李昶, 赵焕梅, 王馨, 夏加国

中国核电工程有限公司放射性废物处置中心,北京 100840

收稿日期:2019-12-20 出版日期:2020-07-20 发布日期:2020-09-21
作者简介:李星宇(1990—),女,2011年毕业于中国地质大学(武汉)地下水科学与工程专业,2014年硕士毕业于中国地质大学(北京)地下水科学与工程专业,工程师。 E-mail:lixyd@cnpe.cc

Preliminary safety assessment of deep borehole disposal for spent fuel (SF)

LI Xingyu, WANG Xuhong, YANG Qiuyu, LV Tao, LI Chang, ZHAO Huanmei, WANG Xin, XIA Jiaguo

China Nuclear Power Engineering Co. LTD., Radioactive Waste Disposal Center, Beijing 100840

Received:2019-12-20 Online:2020-07-20 Published:2020-09-21

摘要/Abstract

摘要： 为探讨乏燃料深钻孔处置方式的安全性,本文在已有处置概念设计基础上,以某乏燃料核素类型与活度作为输入源项,通过保守假设选取处置孔上方打井饮水景象开展安全评价计算,得出所致最大个人有效剂量为0.045 mSv/a,最大剂量出现在处置孔关闭后的8 200年,主要剂量贡献核素为I-129,该结果可为我国高放废物深钻孔处置的研发提供参考。

关键词: 深钻孔处置, 乏燃料, 景象分析, 核素迁移, 安全评价

Abstract: In this article, a preliminary safety assessment calculation is taken to discuss the safety of deep borehole disposal of SF. The calculation work is based on existing conceptual design with input source term chosen from a specific SF’s radionuclides. For the radionuclide migration pathway, drinking water though well above the disposal borehole is selected under conservative assumption. Calculation result shows that the maximum individual radiation dose is 0.045 mSv/a, arising in the 8 200 year after closure of the disposal borehole, which was mainly caused by I-129. This result can provide a good reference for R&D work of deep borehole disposal in China.

Key words: deep borehole disposal, spent fuel, scenario analysis, radionuclide migration, safety assessment

中图分类号:

TL942+.2

李星宇, 王旭宏, 杨球玉, 吕涛, 李昶, 赵焕梅, 王馨, 夏加国. 乏燃料深钻孔处置安全试评价[J]. 辐射防护, 2020, 40(4): 325-330.

LI Xingyu, WANG Xuhong, YANG Qiuyu, LV Tao, LI Chang, ZHAO Huanmei, WANG Xin, XIA Jiaguo. Preliminary safety assessment of deep borehole disposal for spent fuel (SF)[J]. RADIATION PROTECTION, 2020, 40(4): 325-330.

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