摘要
本文主要阐述了某河段凌汛的类型及影响因素,该河段冰凌洪水的主要类型有冰塞、冰坝及溃决性凌洪,这类洪水多在最严寒的12—1月份发生,主要出现在该河段以上70km干支流河段,其洪量较小,洪峰不大,但集中携带相当数量的、质地坚硬而尺寸较大、较厚的大块岸冰滑脱至下游河道,这是在该河段以下河道形成较大的冰坝壅水灾害的重要起因条件。
The paper describes the types and influence factors of ice-flood of a certain river section.The iceflood types of this section has ice jam,ice dam and outburst ice-flood.This type of flood often occurs above 70km upstream of the section in the coldest December to January.The flood volume is small and flood peak is low,but the flood carries large amount of massive hard ice drifting to the downstream river,which is an important causation for the formation of larger ice dam disaster.
出处
《东北水利水电》
2010年第8期43-43,56,共2页
Water Resources & Hydropower of Northeast China
关键词
凌汛
凌汛特征
影响因素
ice-flood
ice-flood characteristics
influence factor
