Impacts of bridge piers on water level during ice jammed period in bend channel–An experimental study
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Experiments are carried out in an “S-shaped” flume in the laboratory under both open flow and ice-jammed conditions to study the impacts of bridge piers in a bend channel on the variation of the water level. The variations of the water level under the ice jammed condition with bridge piers are compared to those without bridge piers in an 180° bend channel. Results indicate that the bridge piers in the S-shaped channel have obvious impacts on the ice accumulation and the water level. The increment of the water level with the presence of the bridge piers is less than that without the bridge piers in the channel. Different arrangements of the bridge piers result in different increments of the water level. When one bridge pier is installed in the straight section of the channel (between 2 bends) and another one at the bend apex (for a convex bank), the increment of the water level during the equilibrium ice jammed period is between that with a single bridge pier located in the straight section of the bend channel and that with a single bridge pier located at the bend apex. It is also shown that the increment of the water level during the equilibrium ice jammed period increases with the increase of the average thickness of the ice jams.
KeywordsIce jam bend channel bridge pier increment of water level
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- Sui J., Fang D., Zhou Y. Analysis and calculation of the ice jam stage in the Hcqu Reach of the Yellow River [J]. Journal of China Hydrology, 1994, 14(2): 18–24(in Chinese).Google Scholar
- Wang J., Fu H., Yin M. et al. Analysis of stages under ice-covered in winter [J]. Advance in Water Science, 2007, 18(1): 102–107.Google Scholar
- Tyminski T. Hydraulic model research on bridge piers based on the example of selected bridges in Opole [J]. Rocznik Ochrona Srodowiska, 2010, 12: 879–893.Google Scholar
- Hou Z. J., Sun Y., Gu Z. G. Experimental study on the ice physical modeling with a spanning river bridge [J]. Journal of Sediment Research, 2014, (4): 49–54(in Chinese).Google Scholar
- Yu S. B., Gu Z. G., Hou Z. J. Ice physical model of Baoshen railway bridge across Yellow River in thawing period [J]. Advances in Science and Technology of Water Resources, 2014, 34(4): 57–61(in Chinese).Google Scholar
- Deng Y., Zhang X. Experimental study of ice model for bridge site backwater in Haibowan reservoir area [J]. Journal of Hydroelectric Engineering, 2013, 32(4): 109–113.Google Scholar
- Sui J., Karney B., Fang D. Variation in water level under ice-jammed condition-Field investigation and experimental study [J]. Nordic Hydrology, 2005, 36(1): 65–84.Google Scholar
- Wang J., Nie J. A study on calculation of water level in a river reach with frazil ice jam [J]. Journal of Nanjing Forestry University (Natural Sciences Edition), 2002, 26(2): 69–72(in Chinese).Google Scholar