Emergency intervention modes for ice jam events in large-scale water diversion projects

IF 2.7 4区环境科学与生态学 Q2 Environmental Science

Hydrology Research Pub Date : 2023-09-07 DOI:10.2166/nh.2023.029

Zepeng Xu, Mengkai Liu, Guanghua Guan, Xinlei Guo

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引用次数: 1

Abstract

The formation of ice jams is sudden, and they will cause abnormal water level fluctuations in water diversion projects, affecting the water supply and even causing severe flood disasters. Based on the characteristics of the Middle Route of the South-to-North Water Diversion Project, this paper uses the numerical simulation method to establish an emergency intervention effect simulation model for ice jam events. The hydraulic response characteristics of the project under gate group scheduling and taking different emergency measures are analyzed with the water level deviation and stabilization time consumption of the pool as indicators. Moreover, this paper proposes an emergency intervention mode for ice jam events. The results show that using the gate group scheduling after ice jam events will cause a sharp rise in the upstream water level of the pool where the ice jams are located. Also, compared with other emergency measures, the electric heating ice melting measure has less influence on water level, and the de-icing effect is better. Finally, the emergency intervention mode can significantly reduce the maximum water level deviation and shorten the time required to stabilize the water level.

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大型引水工程冰塞事件应急干预模式

冰堵的形成具有突发性，会引起引水工程的水位异常波动，影响供水，甚至造成严重的洪涝灾害。本文根据南水北调中线工程的特点，采用数值模拟的方法，建立了冰塞事件应急干预效果模拟模型。以水塘水位偏差和稳定时间消耗为指标，分析了闸门群调度和采取不同应急措施下工程的水力响应特性。此外，本文还提出了一种针对冰塞事件的应急干预模式。结果表明，在冰堵事件发生后采用闸组调度会导致冰堵所在池上游水位急剧上升。与其他应急措施相比，电加热融冰措施对水位的影响较小，除冰效果较好。最后，应急干预模式可以显著降低最大水位偏差，缩短稳定水位所需时间。

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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来源期刊

Hydrology Research Environmental Science-Water Science and Technology

CiteScore

5.30

自引率

7.40%

发文量

审稿时长

17 weeks

期刊介绍： Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.