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<p>The continuous release of radon-222 from uranium tailings can be regarded as a tracer for dam damage assessment. In this paper, the initial dam body numerical model Model-O was constructed by COMSOL Multiphysics software based on Darcy's law and Biot porous elasticity theory, and the model was updated according to the shaking table test data, then the radon exhalation pattern under the dam body damage state was simulated by the updated model. The results show that radon can be used as a tracer to assess the dam damage, and the updated model simulates radon exhalation more accurately.</p>

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Radon exhalation patterns for assessing seismic damage of a uranium tailings dam based on an updated numerical model

  • 期刊论文

  • 发表日期：

    2025年11月11日

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  • Chengyan Yan,
  • Yong Liu,
  • Xingwang Dai,
  • Jiawei Li,
  • Yourui Jiang,
  • Gaiyuan Chen,
  • Yifan Chen

摘要

The continuous release of radon-222 from uranium tailings can be regarded as a tracer for dam damage assessment. In this paper, the initial dam body numerical model Model-O was constructed by COMSOL Multiphysics software based on Darcy's law and Biot porous elasticity theory, and the model was updated according to the shaking table test data, then the radon exhalation pattern under the dam body damage state was simulated by the updated model. The results show that radon can be used as a tracer to assess the dam damage, and the updated model simulates radon exhalation more accurately.