Modelling thermo-hydro-mechano-chemical interactions for nuclear waste disposal: Modelling thermo-hydro-mechano-chemical interactions for nuclear waste disposal
Modelling thermo-hydro-mechano-chemical interactions for nuclear waste disposal: Modelling thermo-hydro-mechano-chemical interactions for nuclear waste disposal
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DOI：
10.3724/sp.j.1235.2010.00097
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发表时间：
2010-05
期刊：
影响因子：
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通讯作者：
A. Gens;S. Olivella;M. Sánchez
中科院分区：
文献类型：
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作者：
A. Gens;S. Olivella;M. Sánchez
摘要 本文描述了一种完全耦合的热-水-机械-化学 (THMC) 配方。特别关注在核放射性废物处置中用作工程屏障的粘土屏障中可能遇到的现象。化学配方中考虑的过程类型包括水解、络合物形成、氧化/还原反应、酸/碱反应、矿物质沉淀/溶解和阳离子交换。动力学和平衡控制反应都被纳入其中。该公式以数字代码的形式实现。提出了一项关于模拟高放射性废物储存库条件的大规模原位加热测试性能的应用。
Abstract A fully coupled thermo-hydro-mechano-chemical (THMC) formulation is described in this paper. Special attention is paid to phenomena likely to be encountered in clay barriers used as engineered barriers in the disposal of nuclear radioactive waste. The types of processes considered in the chemical formulation include hydrolysis, complex formation, oxidation/reduction reactions, acid/base reactions, precipitation/dissolution of minerals and cation exchange. Both kinetics- and equilibrium-controlled reactions are incorporated. The formulation is implemented in a numerical code. An application is presented concerning the performance of a large-scale in-situ heating test simulating high-level radioactive waste repository conditions.