高放废物地质处置黏土岩处置库围岩研究现状

世界上很多国家都对处置库的可能围岩进行了详细研究。通过对比，认为花岗岩、黏土岩、岩盐比较适合作为处置库围岩，而黏土岩由于具有自封闭性、渗透率低等其他岩石类型不可比拟的优点，因而将黏土岩作为高放废物地质处置库围岩越来越受到各国的关注。文章同时介绍了瑞士、法国、比利时等国家在黏土岩中所进行的大量研究，均认为在黏土岩中处置高放废物和乏燃料是安全的。文章还对黏土岩处置库概念设计、黏土岩处置库围岩地下实验室研究，以及我国开展黏土岩处置库研究的意义等进行了综述。

Research situation of claystone as hosting rock for high level

Many countries have studied the possible hosting rocks of the geological repository in detail and found that granite, claystone and rock salt are suitable to the geological repository. Moreover, claystone is considered to have many incomparable advantages due to its self sealing ability and low permeability, more and more attention has been paid to the study of claystone as the hosting rock of geological repository for high level radioactive wastes. At the same time, this paper introduces the research results in some countries, such as Switzerland, France and Belgium, which has performed a great quantity of study on claystone, and all believes that claystone is safety for disposal of high level radioactive waste and spent nuclear fuel. The conception and design of claystone geological repository, the study on the hosting rock of claystone geological repository in underground laboratory and the importance of claystone study as the hosting rock of geological repository in China are summarized in this paper.