| 蓄滞洪区洪水演进模拟及设计洪水演进模型的验证 |
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| 引用本文： | 肖玉红.蓄滞洪区洪水演进模拟及设计洪水演进模型的验证[J].安徽农业科学,2012,40(33):16497-16500. |
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| 作者姓名： | 肖玉红 |
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| 作者单位： | 西藏农牧学院水利土木工程学院,西藏林芝,860000 |
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| 基金项目： | 西藏自治区创新人才培养改革试点专业资助项目 |
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| 摘 要： | 目的]研究蓄滞洪区中的工程设计及防洪影响评价方法。方法]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。结果]对建立的洪水演进数学模型用小清河蓄滞洪区的历史洪水淹没资料进行验证,模拟了自然滞洪和分区滞洪2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。结论]该研究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。
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| 关 键 词： | 滞洪区 小清河 洪水演进数学模拟 模型的验证 |
Numerical Model of Flood Routing in the Flood Retarding Basin and Verification of Flood Routing Model |
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| XIAO Yu-hong.Numerical Model of Flood Routing in the Flood Retarding Basin and Verification of Flood Routing Model[J].Journal of Anhui Agricultural Sciences,2012,40(33):16497-16500. |
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| Authors: | XIAO Yu-hong |
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| Institution: | XIAO Yu-hong(Tibet Institute of Agriculture and Animal Husbandry,Linzhi,Tibet 860000) |
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| Abstract: | Objective] To study project design and flood prevention evaluating method in flood retarding basin.Method] A flood routing model was established using finite volume method based on two-dimensional unsteady flow equations.Numerical flux,impoundage and flood level were calculated hydrodynamically according to different terrain conditions and flood dispatching schemes,and effects of the subgrade volume,culvert size,earthwork volume were also considered here.Result] The model was firstly verified by the historic flood data of Xiaoqing river flood retarding basin,then used to simulate flood processes of natural flood storage and partition flood storage,respectively.The simulated results were basically consistent with historic record.Conclusion] The study provided a proper research method for engineering construction and flood impact assessment. |
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| Keywords: | Flood retarding basin Xiaoqing River Numerical simulation of flood routing Verification of flood routing model |
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