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首页> 外文会议>17th Anniversary of the International Simulatros Conference, Apr 16-20, 2000, Washington, D.C. >FATE AND TRANSPORT IN THE SUBSURFACE OF RADIOACTIVE WASTE
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FATE AND TRANSPORT IN THE SUBSURFACE OF RADIOACTIVE WASTE

机译：放射性废物表面下的命运与运输

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Disposal of tritium generation wastes in shallow, concrete vaults was modeled to determine aquifer concentrations created by advection and diffusion. A 10,000-year minimum duration was examined, hence material changes in waste containers, vaults and engineered barriers were accommodated in the simulations. Ground-water flow analyses were accomplished in three steady-state stages, representing the intact, cracked, and failed states of the concrete vaults. Radionuclide half-lives and K_(dS) were major inputs to transient transport modeling that was performed to complete the analyses. Contaminant mass fluxes to the water table and concentrations at a hypothetical 100-m down-gradient well from the analyses of two radionuclides were presented displaying distinctively different behaviors.
机译：对shallow气在浅层混凝土拱顶中的处置进行了建模，以确定由对流和扩散产生的含水层浓度。检查了10,000年的最短持续时间，因此在模拟中考虑了废物容器，保险库和工程屏障中的材料变化。地下水流分析在三个稳态阶段完成，分别代表了混凝土拱顶的完整，破裂和破坏状态。放射性核素的半衰期和K_（dS）是为完成分析而进行的瞬态传输模型的主要输入。根据对两种放射性核素的分析，得出了假设的100 m下坡井的污染物向地下水的质量通量和浓度，显示出截然不同的行为。

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