某铀尾渣库退役治理覆盖系统设计  

Design of Cover System for Decommissioning of Uranium Mill Tailings Pond

作　　者：胡良才 郭大平 李哲辉 李玉雷 张宁 HU Liangcai;GUO Daping;LI Zhehui;LI Yulei;ZHANG Ning(The Fourth Research and Design Engineering Corporation,CNNC,Shijiazhuang 050021,China)

机构地区：[1]中核第四研究设计工程有限公司,河北石家庄050021

出　　处：《铀矿冶》2021年第1期70-75,共6页Uranium Mining and Metallurgy

摘　　要：结构合理的覆盖系统是有效降低铀尾矿(渣)库氡析出率的重要措施。在总结国内外铀尾矿(渣)库覆盖系统研究成果及发展历程的基础上,根据辽宁某铀尾渣库现场覆土降氡试验成果,提出该尾渣库退役治理多层覆盖系统结构型式设计,并确定了覆盖材料、厚度和组成。设计的覆盖系统结构型式简单,施工方便,满足将氡析出率降至规定限值以下的要求。Reasonably structured cover system is an important measure to effectively reduce the radon exhalation rate of uranium mill tailings ponds.Summarized research results and development history of uranium mill tailings pond cover system at home and abroad,then for a uranium mill tailings pond in Liaoning,China,based on the results of the on-site radon-reducing test,design of the multi-layer cover system for decommissioning disposal of the tailings pond was proposed,and the covering material,thickness and composition were determined.The structure of the cover system is simple,and the construction is convenient.It meets the requirement of reducing radon exhalation rate to below the specified limit.

关 键 词：覆盖系统 铀尾渣库 退役治理 氡析出率 

分 类 号：TL75[核科学技术—辐射防护及环境保护] X591[环境科学与工程—环境工程]