【摘要】 高放废物地质处置地下实验室作为开发和验证高放废物地质处置技术、评价场址适宜性的地下研究设施,在高放废物地质处置中起着至关重要的作用。为保证地下实验室施工安全,对其施工风险进行分析评价具有十分重要的理论意义和工程应用价值。故障树分析和层次分析是工程风险评估中重要的分析方法,本文将故障树的结构重要度与层次分析法中的权重相结合,首先辨识出地下实验室施工风险因子,然后建立故障树模型,再将故障树的结构重要度计算结果引入层次分析法判断矩阵的构建中,最后提出基于故障树模型的层次分析法。将该方法应用于评价甘肃北山我国首座高放废物地质处置地下实验室的施工风险,获得了地下实验室施工期风险的权重分布玫瑰云图,提出了对保证地下实验室施工安全具有指导性的建议和结论。更多还原

【Abstract】 High level radioactive waste( HLW) geological disposal underground laboratory plays a vital role in geological disposal as an underground research facility used for developing and validating the HLW geological disposal technology,evaluating suitability of the site. In order to ensure the construction safety of underground laboratory,it has very important theoretical significance and engineering application value to analyze and evaluate the construction risk. Fault tree analysis( FTA) and analytic hierarchy process( AHP) are important method in engineering risk assessment. This paper combined FTA structure importance with the weight of AHP,first identified the construction risk factors of underground laboratory,built up the fault tree model,then introduce the calculation result of FTA structure importance into the judgment matrix of AHP,and finally put forward AHP method based on FTA. This method is applied to evaluate the construction risk of China’s first HLW disposal underground laboratory in Beishan,Gansu province,also obtained rose cloud for the distribution of risk weight of underground laboratory,and put forward the suggestions and conclusions to ensure the safety of underground laboratory construction.更多还原