本文選題：防洪保護區(qū) + 多源洪水��； 參考：《水利水運工程學報》2016年05期

【摘要】：針對防洪保護區(qū)單一洪水風險分析的不足,以一、二維非恒定流基本控制方程為理論基礎(chǔ),采用有限體積法對網(wǎng)格進行離散求解,建立潰堤洪水和暴雨多源洪水耦合的數(shù)學模型。在一、二維模型的鏈接處選用堰流公式實現(xiàn)河槽與保護區(qū)水流的實時交互,借助干濕水深理論對模型進行優(yōu)化,利用遙感影像解譯處理保護區(qū)內(nèi)復雜地形條件下糙率對洪水演進的影響,概化處理區(qū)域內(nèi)道路和過水涵洞對洪水的阻水或?qū)饔?并利用歷史實測洪水資料進行模型驗證。將驗證后的模型應(yīng)用于淮河干流鳳臺段防洪保護區(qū)多源洪水運動耦合模擬,分析了單一洪水與多源洪水對防洪保護區(qū)的損失比較結(jié)果,說明該區(qū)域受暴雨內(nèi)澇影響較為嚴重。
[Abstract]:In order to solve the problem of single flood risk analysis in flood protection area, the finite volume method is used to solve the problem based on the basic control equations of one and two dimensional unsteady flow. A mathematical model of the coupling of embankment flood and rainstorm flood is established. The Weir formula is used to realize the real-time interaction between channel and protected area at the link of the first and two-dimensional models, and the model is optimized by the theory of dry-wet water depth. The effects of roughness on flood routing under complex topographic conditions in protected areas are interpreted by remote sensing images, and the effects of road and culvert on flood resistance or diversion are generalized, and the model is verified by historical measured flood data. The verified model is applied to the coupled simulation of multi-source flood movement in the Fengtai section of the Huaihe River main stream. The results of the comparison between the single flood and the multi-source flood on the flood protection area show that the area is seriously affected by the rainstorm waterlogging.
【作者單位】： 天津大學水利工程仿真與安全國家重點實驗室;天津大學前沿技術(shù)研究院有限公司;
【基金】：國家自然科學基金資助項目(51209158) 高等學校學科創(chuàng)新引智計劃資助項目(B14012)
【分類號】：TV122

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