Ice jam is a common phenomenon for rivers in cold regions.Lodgment and gorging can easily occur especially in curved channels.The formation of ice jam and its thickness distribution in curved channels were not fully understood.By changing the flow conditions and ice discharge in a flume in the laboratory,the ice jam formation and its thickness distribution was studied.The experiment results showed that when model ice cover was pre-placed in the curved channel,the advancing rate of the initial front edge of the ice jam increased with the increase of the channel flow Froude number(Fr).When model initial ice jam was pre-placed downstream of the curved channel,it was found that there were two kinds of sequences in ice jam forming,jam forming from upstream to downstream or reverse,depending on the channel flow condition.The threshold Fr numbers for whether an ice jam would form were established for this curved channel in the laboratory.
- 王军, 高月霞, 尹运基, 郭力文, 赵慧敏. 弯槽段冰塞形成及其厚度分布的试验研究[J]. 冰川冻土, 2007, 29(5): 764-769.
- WANG Jun, GAO Yue-xia, YIN Yun-ji, GUO Li-wen, ZHAO Hui-min. An Experimental Study of Ice Jam Formation and Its Thickness Distribution in a Curved Channel[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2007, 29(5): 764-769.