冰塞水位分析  

Analysis of stages under ice-covered in winter

作　　者：王军[1] 付辉[1] 伊明昆[1] 尹运基[2] 高月霞[3] 

机构地区：[1]合肥工业大学土木建筑工程学院,安徽合肥230009 [2]机械工业部第六设计院,河南郑州450003 [3]同济大学环境科学与工程学院,上海200092

出　　处：《水科学进展》2007年第1期102-107,共6页Advances in Water Science

基　　金：国家自然科学基金资助项目(10372028)~~

摘　　要：高纬度地区河流冬季常形成冰塞,冰塞堵塞过流断面,使湿周增加,致上游水位升高,常因此产生凌洪灾害,冰塞的解体、溃决又常使下游产生灾害。冰期水位是冰塞演变和发展的重要结果之一,对于防灾减灾具有重要的参考价值。依据实验室资料和黄河河曲段的实测资料,针对直道和弯槽,对比分析了不同冰流量、不同初始水深和流速时模拟冰塞和天然河道冰期水位的变化规律。Each winter, ice jam may form on rivers in cold regions, causing many problems with its effects on the increasingly wet perimeter and blocking cross. Ice formation has the potential for causing the stage in the river to rise and suddenly catastrophic flooding. Break ice jams often occur suddenly and induce severe flooding with little warning. It is important to mitigate the stages due to the evolution of ice jam. This paper provides analyses and discussion of ice jam stages with variation in ice discharge and initial flow depth and velocity in straight and curved channels based on the data from the experiment and the field observations at the Hequ gauge station of the Yellow River.

关 键 词：冰塞 水位 直槽 弯槽 

分 类 号：P343[天文地球—水文科学]