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Water 2018, 10(6), 700; https://doi.org/10.3390/w10060700

Effects of Water Depth and Ice Thickness on Ice Cover Blasting for Ice Jam Flood Prevention: A Case Study on the Heilong River, China

1
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
2
Support Centre of Flood Control and Drought Relief of Heilongjiang Province, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Received: 29 April 2018 / Revised: 20 May 2018 / Accepted: 22 May 2018 / Published: 28 May 2018
(This article belongs to the Section Hydrology)
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Abstract

Ice blasting with explosives is an important method for mitigating or preventing ice jam floods during the spring breakup of frozen rivers. Successful blasting relies on properly determining the relationships between parameters including blasting crater radius, explosive weight, ice cover thickness, and water depth, though variations in the final three factors have significant effects on the blasting crater radius. We conducted field experiments in an upper reach of the Heilong (Amur) River, which forms the border between China and Russia, in order to develop an empirical formula correlating these factors. The blasting crater radius determined by the proposed equation resulted in average errors of less than 8.5% when compared with the measured values. This formula was used for ice blasting along the upper Heilong River in spring 2016 and 2017, successfully preventing ice jam formation during river breakup and thus providing a scientific basis for the prevention of ice-related flooding in northern regions. View Full-Text
Keywords: ice cover blasting; blasting crater radius; ice cover thickness; water depth; explosive weight ice cover blasting; blasting crater radius; ice cover thickness; water depth; explosive weight
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Wang, T.; Guo, X.; Fu, H.; Guo, Y.; Peng, X.; Wu, Y.; Li, J.; Xia, Y. Effects of Water Depth and Ice Thickness on Ice Cover Blasting for Ice Jam Flood Prevention: A Case Study on the Heilong River, China. Water 2018, 10, 700.

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