加拿大魁北克省冰控结构附近河流冰过程的现场监测

IF 1.1 4区工程技术 Q3 ENGINEERING, CIVIL

Canadian Journal of Civil Engineering Pub Date : 2023-08-23 DOI:10.1139/cjce-2023-0087

H. Pourshahbaz, Tadros R. Ghobrial, A. Shakibaeinia

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引用次数: 0

摘要

在过去的几十年里，人们设计和建造了各种冰控结构(ICS)，但到目前为止，还没有对这些结构的有效性进行系统的评估。为了实现这一目标，首先必须了解不同冰过程与国际计量系统之间的相互作用。为此目的，在2021-2022年冬季期间，共监测了位于瞿采贝省的四个国际计量系统。结果表明，冰塞保温时间在1.5 ~ 68.5 h之间。当释放与起裂弗劳德数之比大于1时，以机械驱动方式释放堵塞;当该比小于1时，以热驱动方式释放堵塞，并且在起裂与释放之间水温升高。随着桥墩总间距与上游河道宽度之比的增大，保持时间减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Field monitoring of river ice processes in the vicinity of ice control structures in the province of Quebec, Canada

Over the past decades, a variety of ice control structures (ICS) have been designed and built, but to date, there has been no systematic evaluation of the effectiveness of these structures. To achieve this objective, first an understanding of the interaction between the different ice processes and the ICSs must be established. For this purpose, a total of four ICSs located in the province of Québec were monitored during the 2021-2022 winter. The results showed that the ice jam holding time could vary from 1.5 to 68.5 hours. The release of the jam was mechanically driven when the ratio of release to initiation Froude number was higher than one and was thermally driven when this ratio was lower than one and the water temperature increased between initiation and release. Also, as the ratio of the total pier spacings to upstream river width increased, the holding time decreased.

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来源期刊

Canadian Journal of Civil Engineering 工程技术-工程：土木

CiteScore

3.00

自引率

7.10%

发文量

105

审稿时长

14 months

期刊介绍： The Canadian Journal of Civil Engineering is the official journal of the Canadian Society for Civil Engineering. It contains articles on environmental engineering, hydrotechnical engineering, structural engineering, construction engineering, engineering mechanics, engineering materials, and history of civil engineering. Contributors include recognized researchers and practitioners in industry, government, and academia. New developments in engineering design and construction are also featured.