黄河河曲段冰塞水位的分析计算

Analysis and Calculation of the Ice Jam Stage in the Hcqu Reach of the Yellow River

本文根据黄河河曲段６年的实测资料，分析了该冰塞河段冰期水位的变化规律，讨论了该河段冰塞水位的变化与冰塞演变的相互关系，建立了冰塞水位变化的参数关系式。基于原型的观测研究，对试验室模拟冰塞的水位进行了分析研究。研究表明：试验室模拟冰塞水位的变化规律与天然河道中冰塞水位的变化规律相同。由此，可以进行冰塞水位的计算及其预报。

In this paper.analysis is made on the law of variation of river stage of ice jam in freezing periods,re-lation between stage variation and evolution of ice jam is discussed and a,relational expression of pnrameter is es-tablished on the law of variation of river stage based on the data observed in the Hequ Reach of the Yellow River-According to the field observation research.study has been made on the simulated ice jam stage in the lab.The icejam stage is the same as that in the natural river Therefore,the relational expression of the parameter can be used to calculate and forecast the ice jam stage.