岩洞型低中放废物处置库设计建造关键问题分析

Research on key issues of design and construction of disposal cavern for low and intermediate level radioactive waste

在介绍国内核电低中放废物的生产和处置现状的基础上,对比IAEA和国内法规,分析了对长寿命低中放废物进行岩洞处置的必要性和紧迫性。根据国外岩洞型低中放废物处置库的建造情况,重点分析了国内该型处置库在设计建造时需关注的关键问题,并提出了相关建议。如建议我国处置库采用巷道与筒仓相结合的分开堆放形式;洞室内外应设置多重防排水设施,且内外排水分开设计;对处置区进行分区设置,合理布置通风系统等。

We present the production and disposal condition of low and intermediate level radioactive waste in China,and demonstrate the necessity and urgency of disposing the long- life LILRW in cavern facilities according to IAEA law as well as domestic regulations. Based on the construction experiences of foreign disposal cavern for LILRW,we put forward some key issues in the design and construction of LILRW disposal cavern in China,and several suggestions are given,such as piling up the waste separately by laneway and silo; arranging isolated multi- level drainage facilities inside and outside the cavern; dividing the disposal area according to the radioactive level,and choosing a rational ventilation system.