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| 蓄滞洪区洪水演进数学模型研究及应用 |
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李大鸣1,管永宽1,李玲玲1,吕会娇1,王强2
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1. 天津大学建筑工程学院暨港口与海洋工程教育部重点实验室,天津,300072
2. 水利部海委引滦工程管理局,河北迁西,064309
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| 摘要: |
| 以二维非恒定流基本控制方程为理论基础,采用有限体积法,建立洪水演进数学模型.根据蓄滞洪区内不同地形条件及洪水调度方案,以相应的水动力学方法,对模型区域的通量、蓄水量和洪水实时淹没水位进行计算,并考虑了公路建设中路基体积、涵洞尺度、取土方量对蓄滞洪区洪水演进的影响.采用恩县洼蓄滞洪区的历史洪水淹没资料进行模型验证,模拟了自然滞洪和分区滞洪两种情况下的洪水淹没过程,模拟结果与历史统计淹没范围基本吻合,预报了公路建设后蓄滞洪区洪水位的变化及风浪对洪水最大淹没范围的影响,为蓄滞洪区中的工程建设和防洪影响评价提供了研究思路和方法. |
| 关键词: 蓄滞洪区 洪水演进 数学模型 分区滞洪 |
| DOI： |
| 分类号:TV122 |
| 基金项目: |
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| Flood routing mathematical model for flood detention basin |
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LI Da-ming1,GUAN Yong-kuan1,LI Ling-ling1,LV Hui-jiao1,WANG Qiang2
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LI Da-ming1,GUAN Yong-kuan1,LI Ling-ling1,LV Hui-jiao1,WANG Qiang2(1.Key Laboratory of Harbor & Ocean Engineering,Ministry of Education,School of Civil Engineering,Tianjin University,Tianjin 300072,China,2.The Administration of the Luanhe Diversion Project,HRC,MWR,Qianxi 064309,China)
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| Abstract: |
| Based on 2D unsteady flow governing equations,the finite volume method is adopted to establish a flood routing mathematical model.According to different terrain conditions in detention basin and flood operational plans,the flux,water storage and real-time inundated water level of the study region are calculated with corresponding hydrodynamic methods.The influences of roadbed volume,culvert size and earthwork on flood routing in highway construction in the detention basin are also considered.The model adopt... |
| Key words: flood detention basin flood routing mathematical model zoning flood detention |
