泥石流沟道运动-淤塞-堵溃模式运动机理和数值模拟
收藏国家地球系统科学数据中心2017-11-12 更新2024-03-04 收录
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资源简介：
建立适合树枝状沟道系统的一维泥石流运动-淤塞-溃决数值模型，并利用野外观测数据和实验数据，对模型相关参数进行率定和验证。模拟松散颗粒物质在沟道中的启动、淤塞、溃决的具体过程，确定堰塞体对泥石流放大效应的动力学过程和机理，提出适用于级联堵溃条件下泥石流流量、流速的变化规律。
A one-dimensional numerical model for debris flow movement, deposition and failure was developed for dendritic channel systems. Relevant model parameters were calibrated and validated using field observation data and experimental data. The specific processes of initiation, deposition and failure of loose granular materials within channels were simulated, and the dynamic processes and mechanisms underlying the amplification effect of debris flows induced by barrier bodies were clarified. Furthermore, the variation laws of debris flow discharge and flow velocity applicable to cascading blockage and failure conditions were proposed.
提供机构：
中国科学院水利部成都山地灾害与环境研究所
创建时间：
2017-11-12
