文章摘要
王恺祯,王军,隋觉义.黄河宁蒙河段冰期洪水波运动过程中的变形分析[J].水利学报,2018,49(7):869-876
黄河宁蒙河段冰期洪水波运动过程中的变形分析
Deformation of flood wave during ice river period in the Ningxia-Inner Mongolian Reach of the Yellow River
投稿时间:2018-01-13  
DOI:10.13243/j.cnki.slxb.20180115
中文关键词: 马斯京根法  冰期洪水  洪水波变形  冰盖冻结增厚  冰盖融化减薄
英文关键词: Muskingum method  ice river flood  flood wave deformation  ice cover thickening  ice cover thawing
基金项目:国家自然科学基金项目(51379054)
作者单位E-mail
王恺祯 合肥工业大学 土木与水利工程学院, 安徽 合肥 230009  
王军 合肥工业大学 土木与水利工程学院, 安徽 合肥 230009 junwanghfut@126.com 
隋觉义 北英属哥伦比亚大学 环境工程系, 加拿大 乔治王子城 V2N 4Z9  
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中文摘要:
      河道中冰盖的存在会影响到洪水波的演进变形。以黄河宁蒙河段为研究对象,将马斯京根法尝试应用于冰期洪水计算,分析了马斯京根法参数与糙率的关系,比较了冰盖冻结增厚和融化减薄过程对洪水波变形的影响差异。研究结果表明,将马斯京根法应用于冰期洪水计算是可行的;断面的糙率越大,洪水波传播时间越久,变形越大;冰盖冻结增厚过程中,洪水波的变形存在先增加再减少而后又增加的现象;冰盖融化减薄过程中,洪水波随冰厚的减薄而变形增大。相同冰厚下,两种过程的变形程度存在交点。交点之前的冰厚范围,冰盖融化减薄时的洪水波变形更大;交点之后的冰厚范围,冰盖冻结增厚时的洪水波变形更大。
英文摘要:
      The existence of ice cover in northern river courses may affect flood rooting and the deformation of flood wave propagation. Taking the Ningxia-Inner Mongolia Reach of the Yellow River as the research ob-ject, the Muskingum method is applied to calculate the flood rooting during ice period, analyzing the rela-tionship between the Muskingum parameters and the roughness, and comparing the difference of the im-pacts of ice cover thickening and thawing processes on the flood wave deformation. The results indicate that it is feasible to apply the Muskingum method to calculate flood during ice river period,the greater the sec-tion roughness, the longer the flood wave propagation and the greater the degree of deformation will be. During the ice cover thickening process, the deformation of flood wave increases at first, then decreases, and afterward increases again. During the ice cover thawing process, the deformation of flood wave increas-es. In the case of same ice thickness,there is an intersection of flood wave deformation during two process-es of ice thickness development. Before the intersection point of ice thickness range, the deformation of flood wave is greater when ice cover melts and thins. After that, the deformation of flood wave is greater when ice cover freezes and thickens.
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