CAJ | 학술논문

为了查清某铀矿区氡在地下水环境中的迁移行为，分别开展示踪实验和氡迁移实验，室内模拟孔隙含水介质中氡的迁移过程，深入探讨地下水、土环境中氡迁移的内在规律性，揭示氡的环境行为特征。实验结果表明，氡在孔隙含水介质中运移以地下水对流作用为主，氡在横向上的运移不仅仅是扩散作用，还有地下水的载运作用、介质的吸附作用以及自身的衰变与挥发作用。氡的运移以水平迁移为主，已有研究成果中的“微气泡”理论并非氡在地下水中运移的主要机制。氡随时间变化规律进一步表明氡的迁移是氡的释放、累积与挥发、衰变、吸附作用及地下水对流作用等综合作用的结果。以上研究成果为定量化研究地下环境中氡的迁移归宿提供科学依据，为氡在铀矿勘查中的应用提供理论支持。
위료사청모유광구동재지하수배경중적천이행위，분별개전시종실험화동천이실험，실내모의공극함수개질중동적천이과정，심입탐토지하수、토배경중동천이적내재규률성，게시동적배경행위특정。실험결과표명，동재공극함수개질중운이이지하수대류작용위주，동재횡향상적운이불부부시확산작용，환유지하수적재운작용、개질적흡부작용이급자신적쇠변여휘발작용。동적운이이수평천이위주，이유연구성과중적“미기포”이론병비동재지하수중운이적주요궤제。동수시간변화규률진일보표명동적천이시동적석방、루적여휘발、쇠변、흡부작용급지하수대류작용등종합작용적결과。이상연구성과위정양화연구지하배경중동적천이귀숙제공과학의거，위동재유광감사중적응용제공이론지지。
In order to find out the migration behaviour of radon transport in groundwater environment at uranium mine ,transport process of radon in porous aquifer medium was simulated by laboratory experiment of radon transport and tracer experiment .This paper made in-depth discussions on the migration rules of radon in groundwater and soil and revealed the behaviours of radon in the environment .The experimental results indicated that convection dominated on the movement of radon in porous aquifer medium .The lateral migration of radon was due to not only diffusion but also carrying of groundwater , adsorption of porous medium ,decay and volatilization .The lateral migration played an important part in the movement of radon .The cluster theory and microbubble theory in the existing research results were not the principal migration mechanism of radon transport in porous aquifer medium .Release and accumulation , volatilization ,decay ,adsorption and convection should be the result of radon movement .The findings provided the scientific evidence for quantitative study of migration behaviours of radon in the underground environment and further support for the theory that the application of radon in uranium mine exploration .