基于氡析出机制的铀矿井巷道通风可靠性分析

发布时间：2018-04-26 00:39

本文选题：氡析出 + 氡浓度　；参考：《核技术》2015年01期

【摘要】：为解决铀矿放射性开采安全作业问题,氡的防护尤为重要,而氡运移规律及通风可靠性是解决防氡问题的基础,因此,研究铀矿氡迁移及通风可靠性具有重要的现实指导意义。本文以铀矿井巷道为研究对象,应用系统可靠性技术及氡析出机制,探讨氡在多孔介质中的渗流-扩散迁移规律,分析巷道内稳态和非稳态下氡的析出与分布,建立氡浓度安全作业条件下的铀矿井巷道通风可靠性模型,并利用MATLAB PDE工具箱开展了巷道氡迁移模拟及巷道通风可靠性数值分析,这为地下空间氡防护和铀矿井通风安全作业提供了参考依据。
[Abstract]:In order to solve the problem of safe operation in radioactive mining of uranium mine, the protection of radon is particularly important, and the law of radon migration and the reliability of ventilation are the basis of solving the problem of preventing radon. Therefore, the study of radon migration and reliability of ventilation in uranium mines has important practical guiding significance. In this paper, the systematic reliability technique and radon exhalation mechanism are used to study the percolation and diffusion of radon in porous media, and the exhalation and distribution of radon in the roadway under steady and unsteady state are analyzed by using systematic reliability technique and radon exhalation mechanism. The ventilation reliability model of uranium mine roadway under the safe working condition of radon concentration is established, and the simulation of laneway radon migration and numerical analysis of roadway ventilation reliability are carried out by using MATLAB PDE toolbox. This provides the reference for underground space radon protection and uranium mine ventilation safety operation.
【作者单位】：南华大学环境保护与安全工程学院;南华大学研究生处;
【基金】：国家自然科学基金项目(No.51174116) 湖南省自然科学基金研发项目(No.10JJ2041)资助
【分类号】：TD72

【相似文献】