花岗岩型地质处置库情景试构建与分析  

Preliminary Scenarios Development and Analysis for Repository in Granite

作　　者：凌辉[1] 王驹[1] 陈亮[1] 陈伟明[1] 姜晓辉[1] LING Hui;WANG Ju;CHEN Liang;CHEN Weiming;JIANG Xiaohui(Beijing Research Institute of Uranium Geology,CNNC,Beijing 100029,China)

机构地区：[1]核工业北京地质研究院,北京100029

出　　处：《铀矿地质》2020年第1期59-66,共8页Uranium Geology

基　　金：国防科工局核设施退役及放射性废物治理项目:甘肃北山预选区新场地段候选场址适宜性研究[中核环发2017(18)号];湖南省教育厅项目(15C1192)。

摘　　要：高水平放射性废物(高放废物)地质处置库关闭后长期演变情景的构建和定量分析是安全评价的关键。研究以拟建于北山预选区的花岗岩型处置库为研究对象,对情景开发及其分析进行了初步探索。采用"自下而上"的情景开发方法,构建了处置库关闭后预期演变情景和3类典型的非预期演变情景,对各类情景条件下的核素释放率进行了计算和分析。结果表明,现有条件下,处置库具备较好的安全性;为提升安全评价的可靠度,需要进一步加强情景不确定性的分析。Scenario development and analysis is critical to the safety assessment for the geological disposal of high-level radioactive waste( HLW). This paper focuses on the preliminary development and analysis of the long-term evolution scenarios for a potential HLW repository in Beishan, which is the most potential area for China’s HLW repository. The expected evolution scenario and three typical alternative scenarios were constructed by the method of "Bottom-up", and the effects of radioactivity under various scenarios were analyzed. The results showed that the potential repository is safety under the existing conditions.However, more studies on scenario uncertainty is needed so as to improve the reliability of safety assessment.

关 键 词：北山预选区 高放废物 地质处置 情景 安全分析 

分 类 号：X591[环境科学与工程—环境工程]