| 引用本文: | 阚飞,李晟,卢鑫,等.二维产汇流及溃坝淹没分析模型在堰塞湖的应用研究?[J].灌溉排水学报,,():-. |
| kanfei,LI Sheng,LU XIN,et al.二维产汇流及溃坝淹没分析模型在堰塞湖的应用研究?[J].灌溉排水学报,,():-. |
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| 摘要: |
| 为高效准确地计算堰塞湖溃坝洪水演进过程，构建了一个包含上游库区二维产汇流过程和下游淹没区二维洪水演进的高性能全过程耦合模型，并以四川省雷波县马湖水库为算例，对其百年一遇降雨过程及溃坝过程进行动态模拟。模拟结果表明：降雨到洪水汇集过程时间短，汇水断面最大流量达到14000m3/s，容易造成突发性山洪；突溃情景下，溃坝洪水会在20分钟内淹没水库坝后下游的黄琅镇区域，淹没水深达到10m以上。可见该二维产汇流及溃坝淹没分析模型模型在模拟洪水演进时非常高效，对洪水应急抢险事件可做到快速预测，为决策者提供有力的数据支撑。 |
| 关键词: 产汇流；溃坝；数值模拟；堰塞湖；溃坝淹没分析 |
| DOI： |
| 分类号:TV122 |
| 基金项目:四川省水利厅科技专项雷波县马湖水库堰塞体治理与堰塞湖综合利用关键技术研究(川水科2021005号)、四川省水利厅科技专项东风渠梁江堰水资源智能化调配与智慧水网构建关键技术研究(川水科2020019号)、四川省水利厅科技专项四川省水利信息资源整合共享关键技术应用研究(2022-17-2060499)。 |
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| Application of two-dimensional runoff generation and concentration model and dam-break inundation analysis model in barrier lake |
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kanfei1, LI Sheng2, LU XIN1, DENG Chaoren1, XING Zhi1
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1.Sichuan Research Institute of Water Conservancy;2.Chengdu Bingzheng Technology Co., Ltd
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| Abstract: |
| In order to efficiently and accurately calculate the dam break flood routing process of the dammed lake, a high-performance full process coupling model including the two-dimensional runoff generation and concentration process of the upstream reservoir area and the two-dimensional flood routing of the downstream inundated area was constructed. Taking Mahu Reservoir in Leibo County, Sichuan Province as an example, the 100 year rainfall process and dam break process were dynamically simulated. The simulation results show that the time from rainfall to flood convergence is short, and the maximum flow of catchment section reaches 14000m3/ s. It is easy to cause sudden mountain torrents; In case of sudden break, the dam break flood will inundate the Huanglang Town area downstream of the reservoir dam within 20 minutes, and the inundation depth will reach more than 10 m. It can be seen that the two-dimensional runoff generation and concentration and dam break inundation analysis model is very efficient in simulating flood evolution, which can quickly predict flood emergency rescue events and provide powerful data support for decision makers. |
| Key words: Runoff generation and concentration; Dam-break ; Numerical simulation; Barrier lake; Dam-break inundation analysis |
