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黄金科学技术 ›› 2016, Vol. 24 ›› Issue (5): 67-72.doi: 10.11872/j.issn.1005-2518.2016.05.067

• 采选技术与矿山管理 • 上一篇    下一篇

基于有限元结合MATLAB数值模拟的铀矿山氡扩散迁移研究

陈建宏1,邓东升1,唐海琼2   

  1. 1.中南大学资源与安全工程学院,湖南  长沙   410083;
    2.南华大学核资源工程学院,湖南  衡阳   421001
  • 收稿日期:2015-07-01 修回日期:2015-12-09 出版日期:2016-10-28 发布日期:2016-12-27
  • 作者简介:陈建宏(1963-),男,江苏苏州人,教授,从事矿山安全管理和矿业经济研究工作。cjh@263.net
  • 基金资助:

    国家自然科学基金青年基金项目“基于人工智能的矿山技术经济指标动态优化研究”(编号:51404305)资助

Finite Element Combined with MATLAB Numerical Simulation’s Diffusion Migration Research of Uranium Mine Radon Nuclide

CHEN Jianhong1,DENG Dongsheng1,TANG Haiqiong2   

  1. 1.School of Resources and Safety Engineering,Central South University,Changsha    410083,Hunan,China;
    2.School of Nuclear Resource Engineering,University of South China,Hengyang    421001,Hunan,China
  • Received:2015-07-01 Revised:2015-12-09 Online:2016-10-28 Published:2016-12-27

摘要:

运用有限元法与MATLAB软件相结合的方式,建立核素氡迁移扩散数学模型,使其迁移扩散可视化。分别对铀矿山巷道壁与矿房氡浓度进行了数值计算和二维数值模拟。在数值计算中运用有限元结合MATLAB编程得到了半无限介质和无限延展介质中氡浓度一维曲线图;在二维模拟中利用MATLAB中的PDE TOOL工具箱将半无限大介质和无限延展有限厚介质分别转化为具体的巷道壁和矿房中的氡浓度析出,得到巷道壁的氡浓度和矿房中的氡浓度具体图像。该模拟结果可为降低矿山中氡及氡子体的浓度找到更好的解决办法,提出相应的氡防护措施,为矿山工作人员提供良好的生产环境。此外,研究结果对氡防辐射具有重要的实践意义,可以供铀矿区辐射防护作参考。

关键词: 铀矿山, 辐射防护, 氡和氡子体, 数值模拟

Abstract:

Using the method of finite element combined with MATLAB software to establish mathematical model of nuclide migration of radon diffusion to visualize its diffusion.Conducted numerical calculation and two-dimensional numerical simulation on tunnel walls of uranium mine and mine radon concentration.In the numerical calculation,using finite element method combined with MATLAB programming got semi-infinite medium and infinity one-dimensional curves of radon concentration in the medium.In the two-dimensional simulations using MATLAB PDE TOOL kit translated semi in finite medium and infinity limited thick medium into concrete wall of roadway and room of radon concentration,got tunnel walls radon concentration of radon concentration and ore room specific image.The simulation results can find better solution for reducing the concentration of radon and radon daughter in mines and put forward corresponding radon protective measures to provide a good production environment for the staff in mine.The study has important practical significance for radon radiation protection and can be used as reference for uranium ore district of radiation protection.

Key words: uranium mine, radiation protection, radon and radon daughter, numerical simulation

中图分类号: 

  • TD711

[1] 周星火.铀矿通风与辐射安全[M].哈尔滨:哈尔滨工程大学出版社,2009.
[2] 谢东,王汉青,周星火.我国铀矿通风尾气放射性核素迁移的研究现状及展望[J].铀矿冶,2008,27(2):81-85.
[3] 王曙光,王春艳,李茹.氡及其迁移理论的发展概述[J].西部探矿工程,2012,24(11):171-173.
[4] 叶勇军,丁德馨,李向阳,等.用地积累指数法对轴矿排风井周边土壤辐射污染的安全评价[J].铀矿冶,2008,27(3):138-141.
[5] 姚仁太,夏益华.铀矿环境质量评价中进风井对大气扩散影响的随机行走模拟[J].辐射防护,1999(5):354-360.
[6] 孙占学,刘媛媛,马文洁,等.铀矿区地下水及其生态安全研究进展[J].地学前缘,2014,21(4):158-167.
[7] 翁建庆,何逡,王莉莉.浙江省辐射环境监测现状及对策研究[J].环境污染与防治,2008,30(2):90-92.
[8] 石竞羽.铀矿通风网络系统可靠性分析与优化控制[D].衡阳:南华大学,2015.
[9] 张莹,张超宇,彭玉芳,等.铀矿区地下水中氡迁移的室内模拟[J].中国矿业,2014(6):145-149.
[10] 覃国秀,刘庆成,邓胜永,等.铀矿地表堆浸对环境的影响[J].铀矿地质,2012,28(1):58-64.
[11] 张奇,朱卫国,张震,等.铀矿山项目职业病危害因素及防护措施分析[J].中国职业医学,2014(3):358-360.
[12] 周星火,李向阳,王汉青.铀矿排风口放射性流出物对地表生态环境的影响[C]//第二次全国天然辐射照射与控制研讨会论文汇编.太原:中国辐射防护学会,2005:224-228.
[13] 曹玲玲,王宗礼,刘耀炜.氡迁移机理研究进展概述[J].地震研究,2005,28(3):302-306.
[14] 乐仁昌,贾文懿,吴允平.理想条件下氡及其子体运移新理论及其运移方程[J].物理学报,2003,52(10):2457-2461.
[15] 洪锦泉.氡气其子体团簇的研究[D].福州:福建师范大学,2010.
[16] 白云生,林玉飞,常桂兰.铀矿找矿中氡的迁移机制探讨[J].铀矿地质,1995(4):224-231.
[17] Leelossy A,Meszaros R,Lagzi I.Short and long term dispersion patterns of radionuclides in the atmosphere around the Fukushima Nuclear Power Plant[J].Journal of Environmental Radioactivity,2011,102(12):1117-1121.
[18] Xie D,Wang H Q,Deng Q H,et al.Investigation on differentventilation patterns in an office room[J].Journal of Central South University of Technology,2007,14(S3):66-70.
[19] 莫顺权.铀矿通风井尾气核素氡大气迁移数值模拟[D].衡阳:南华大学,2015.
[20] 谢东.铀矿通风尾气放射性核素在大气中迁移的数值模         拟与实验研究[D].长沙:中南大学,2009.
[21] Wang J S,Chan T L,Cheung C S,et al.Three-dimensional pollutant concentration dispersion of a vehicular exhaust plume in the real atmosphere[J].Atmospheric Environment,2006,40(3):484-497.
[22] Tseng C C,Chang N B.Environmental exposure assessment for emergency response in a nuclear power plant using an integrated source term and 3D numerical model[J].Environment Modeling and Assessment,2009,14(6):661-675.
[23] 苑静.MATLAB在特征值问题上的应用[J].科技信息,2009(20):516,524.
[24] 周耀辉.铀矿冶退役的放射性污染去污的方法和途径讨论[J].铀矿冶,2003,22(3):144-147.
[25] 刘菁华.活断层上覆盖层中氡迁移的数值模拟及反演拟合[D].长春:吉林大学,2006.

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