本文選題：潰堤洪水 + 區(qū)域內(nèi)澇　； 參考：《水利水電技術(shù)》2017年05期

【摘要】：針對防洪保護區(qū)河道洪水的漫灘、潰堤及其與內(nèi)澇疊加耦合預(yù)測的難題,以模擬潰堤洪水遭遇區(qū)域內(nèi)澇情況下洪水演進過程為目標(biāo),采用基于非結(jié)構(gòu)網(wǎng)格的Roe格式離散控制方程,利用Mike-flood提供的標(biāo)準(zhǔn)連接、側(cè)向連接實現(xiàn)一維與二維模型間的耦聯(lián),將潰口口門概化為寬頂堰并添加控制策略實現(xiàn)堤防潰決模擬。采用二維水動力模型耦合降雨徑流關(guān)系計算凈雨過程,建立與區(qū)域內(nèi)澇模型疊加聯(lián)用的一、二維水動力耦合模型。以中運河南片防洪保護區(qū)內(nèi)洪水演進為例進行分析,結(jié)果表明:中運河右堤胡家險工潰決后,洪水向下游演進至房亭河與中運河交匯處的運西洼地內(nèi),最大淹沒水深位于房亭河與中運河交匯處。模型能夠較合理的反映區(qū)域內(nèi)澇分布、地形及主要道路和涵洞對洪水演進的影響,可為區(qū)域內(nèi)防洪搶險工作提供可靠依據(jù)。
[Abstract]:In view of the difficult problems of floodplain, embankment break and coupled prediction of flood superposition with waterlogging in flood protection area, the aim of this paper is to simulate the flood routing process of embankment flood in the case of regional waterlogging. The control equation is discretized by Roe scheme based on unstructured grid, and the standard connection provided by Mike-flood is used to realize the coupling between one-dimensional and two-dimensional models. The gate of the break is reduced to a broad-top Weir and the control strategy is added to simulate the collapse. The two dimensional hydrodynamic model coupled with rainfall runoff is used to calculate the precipitation process, and a two dimensional hydrodynamic coupled model is established for the superposition of the regional waterlogging model. Based on the analysis of flood routing in Henan Province Flood Control Reserve of Zhongyun, the results show that after the collapse of Hujiayuan, the right dike of the middle canal, the flood reaches downstream to the Yunxi depression at the junction of the Fangting River and the Middle Canal. The maximum submerged depth is located at the confluence of the Fangting River and the Middle Canal. The model can reasonably reflect the distribution of regional waterlogging, the influence of topography, main roads and culverts on flood routing, and can provide a reliable basis for regional flood prevention and rescue work.
【作者單位】： 安徽省·水利部淮河水利委員會水利科學(xué)研究院;水利水資源安徽省重點實驗室;
【基金】：國家自然科學(xué)基金(51209001)
【分類號】：TV131.2;TV87

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