土石坝溃决过程数值模拟研究进展

摘要

Earth-rock dam breaching may bring tremendous catastrophe to the people's lives and properties in the inundation area,thus,the research on the breach process of earth-rock dam has great significance to the evaluation of the disaster.First,the major factors of dam failures are analyzed in terms of the dam failure cases.Then,based on the classification of dam breach models for earth-rock dam,special attentions are paid to the research progress of parametric breach models,simplified physical-ly-based breach models,and detailed physically-based breach models.The updated research on the breaching simulation tech-nology of earth-rock dams are summarized and evaluated,in the end,some proposals for future research are put forward.%土石坝的溃决将对淹没区的人民生命财产带来巨大灾难,因此土石坝溃决过程的研究对溃坝致灾后果的评价具有重要意义.首先对大坝的溃决原因进行了分析,并依据常用的土石坝溃决数学模型的分类标准,着重介绍了土石坝溃决参数模型、土石坝溃决过程简化模型和土石坝溃决过程精细化模型的研究进展,对现有成果的优缺点进行了分析总结,并对今后研究的重点提出了相关建议.