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武开河的边界约束判别准则
引用本文:茅泽育,赵雪峰,王爱民,刘颖,胡应均.武开河的边界约束判别准则[J].水利水电科技进展,2009,29(2).
作者姓名:茅泽育  赵雪峰  王爱民  刘颖  胡应均
作者单位:清华大学水利水电工程系,北京,100084
摘    要:根据封冻河道春季冰盖破裂机理,采用弯曲河道边界约束概念,提出可用于预测武开河发生的判别准则,并对其适用性进行了论证。应用黄河河曲段1985~1994年的原型观测资料对该判别准则进行验证,结果表明该准则可以较好地用于河道武开河的判别。

关 键 词:武开河  河冰  判别准则  边界约束  冰盖破裂  冰坝

Boundary constraint criterion for onset of mechanical ice-cover breakup
MAO Ze-yu,ZHAO Xue-feng,WANG Ai-min,LIU Ying,HU Ying-jun.Boundary constraint criterion for onset of mechanical ice-cover breakup[J].Advances in Science and Technology of Water Resources,2009,29(2).
Authors:MAO Ze-yu  ZHAO Xue-feng  WANG Ai-min  LIU Ying  HU Ying-jun
Institution:MAO Ze-yu,ZHAO Xue-feng,WANG Ai-min,LIU Ying,HU Ying-jun(Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China)
Abstract:Based on the mechanism of ice-cover fractures in an icecovered river,the criterion applied to predict the mechanical ice-cover breakup is presented using the concept of boundary constraints in channel bends.The applicability of this criterion is demonstrated.The prototype observation data from the Hequ Reach of the Yellow River from 1985 to 1994 are used to validate the criterion.The results show that the criterion can appropriately forecast the onset of ice-cover breakup.
Keywords:mechanical ice-cover breakup  river ice  criterion  boundary constraint  ice fracture  ice dam  
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