高放废物处置库缓冲层热-水-力耦合数值模拟  

Numerical Simulation of Thermohydromechanical Coupling for Buffer Layer in High Level Radioactive Waste Disposal Repository

作　　者：王玉平[1] 王哲[2] 易发成[2] 曾志强[3] WANG Yuping;WANG Zhe;YI Facheng;ZENG Zhiqiang(Division of International Applied Technology,Yibin University,Yibin,Sichuan 644000,China;School of Environment and Resources,Southwest University of Science and Technology,Mianyang,Sichuan 621010,China;Faculty of Science,Yibin University,Yibin,Sichuan 644000,China)

机构地区：[1]宜宾学院国际应用技术学部,四川宜宾644000 [2]西南科技大学环境与资源学院,四川绵阳621010 [3]宜宾学院理学部,四川宜宾644000

出　　处：《宜宾学院学报》2022年第12期30-37,共8页Journal of Yibin University

基　　金：国防科工局核设施退役及放射性废物治理科研项目(科工二司〔2018〕1521号)。

摘　　要：以混合物理论和连续介质力学为基础,建立考虑固相变形、多相流体流动和热传输的非饱和缓冲材料的温度、渗流和应力(THM)耦合数学模型.以多场耦合缓冲材料Mock-up试验台架为几何原型,利用有限元软件COMSOL Multiphysics中的PDE模块进行二次开发,对高水平放射性废物(HLW)处置库近场的THM耦合过程进行数值模拟,可为高放废物处置库的设计提供理论依据.The coupled thermo-hydro-mechanical(THM)mathematical model of unsaturated buffer materials were established based on the theory of mixtures and continuum mechanics,considering solid phase deformation,multiphase fluid flow,and heat transport.Taking the Mock-up test of multi field coupling buffer material as the geometric prototype,the PDE module in the finite element software COMSOL Multiphysics was used for secondary development.The THM coupling process in the near field of HLW disposal repository was numerically simulated.It provides an important theoretical basis for the design of HLW disposal repository.

关 键 词：高放废物 缓冲材料 热-水-应力耦合 数值模拟 

分 类 号：TL942[核科学技术—辐射防护及环境保护]