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Watershed Planning within a Quantitative Scenario Analysis Framework
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在1963年瓦特灾难期间,WCSPH3D建模了山体滑水动态
Sauro Manenti1, Nicolò Salis2, Sara Todeschini3
1Department of Civil Engineering and Architecture DICAr and Water Research Centre CRA, University of Pavia, via Ferrata 3, Pavia, 27100, Italy. sauro.manenti@unipv.it.
Scientific reports
|November 11, 2024
概括
这项研究使用数值建模模拟了1963年Vajont山体滑坡. 微弱压缩光滑粒子水力学 (WCSPH) 方法准确地预测了冲浪浪潮和洪水,验证了其工程应用.
科学领域:
- 地质技术工程 地质技术工程
- 计算流体动力学的流体动力学.
- 自然灾害的模拟自然灾害的模拟
背景情况:
- 1963年瓦特事件涉及到大规模的山体滑坡进入水库,产生破坏性的浪潮.
- 了解滑坡引起的冲浪波对于危险评估至关重要.
研究的目的:
- 执行一个全面的3D数值模拟Vajont山体滑坡及其合的水动态.
- 为了验证一个修改的微弱压缩平滑粒子水力学 (WCSPH) 模型用于滑坡-冲浪波相互作用.
- 分析水和土壤对冲浪上升的影响.
主要方法:
- 采用无网格拉格朗日弱压缩光滑粒子水力学 (WCSPH) 方法.
- 使用修改版的SPHERA代码 (v.9.0.0) 进行滑坡和水动态.
- 没有校准的机械参数的应用平均文献值.
主要成果:
- 该模拟准确地复制了复杂的冲浪波系统和最大的上升 (270米).
- 模型对最大洪水和峰值流量率的预测与参考数据有很好的一致性.
- 该模型显示了与以前发表的结果相比的改进.
结论:
- 经过验证的WCSPH模型是模拟滑坡冲浪事件的有希望的工具.
- 这项研究强调了考虑水和土壤在运行预测中的重要性.
- 该模型可以帮助量化类似地质危险的风险.
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