铀尾矿库滩面覆盖层土壤压实度对氡析出率的影响  

Effect of soil compaction degree on radon exhalation rate in cover layer of beach surface of uranium tailings pond

作　　者：宋娟 刘永 伍显潍 林东颖 戴兴旺 谢佳丽 陈艳 SONG Juan;LIU Yong;WU Xianwei;LIN Dongying;DAI Xingwang;XIE Jiali;CHEN Yan(School of Resource Environment and Safety Engineering,University of South China,Hengyang Hunan 421001,China;不详)

机构地区：[1]南华大学资源环境与安全工程学院,湖南衡阳421001 [2]湖南省铀尾矿退役治理技术工程技术研究中心,湖南衡阳421001 [3]铀矿冶放射性控制技术湖南省工程研究中心,湖南衡阳421001 [4]南华大学数理学院,湖南衡阳421001

出　　处：《工业安全与环保》2022年第10期86-90,共5页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(11875164)。

摘　　要：铀尾矿库滩面覆盖层土壤的压实度对氡析出率有重要影响,为研究这一变化,建立了氡析出理论模型,并设计了实验装置,通过改变覆盖层土壤的压实程度进行了一系列实验,对氡析出率进行了测量计算。结果表明,覆盖层土壤的压实度升高,使得氡运移通道减少,氡析出率在快速降低后下降趋势趋于平缓。Compaction of soil in the beach cover of uranium tailing ponds has an important influence on radon precipitation rate.In order to study this change,a theoretical model of radon precipitation was established and an experimental device was designed. A series of tests were conducted by changing the compaction degree of the soil in the cover layer and the radon precipitation rate was measured and calculated. The results showed that the increase of compaction degree of the overburden soil reduced the radon transport channels,and the decreasing trend of radon precipitation rate tended to level off after a rapid decrease.

关 键 词：铀尾矿库 覆盖层土壤 压实度 氡析出率 

分 类 号：X753[环境科学与工程—环境工程]