<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Ice jams in northern rivers during winter period significantly change the flow conditions due to the extra boundary of the flow. Moreover, with the presence of bridge piers in the channel, the flow conditions can be further complicated. Ice cover often starts from the front of bridge piers, extending to the upstream. With the accumulation of ice cover, ice jam may happen during early spring, which results in the notorious ice jam flooding. In the present study, the concentration of flowing ice around bridge piers has been evaluated based on experiments carried out in laboratory. The critical condition for the initiation of ice cover around bridge piers has been investigated. An equation for the critical floe concentration was developed. The equation has been validated by experimental data from previous studies. The proposed model can be used for the prediction of formation of ice cover in front of a bridge pier under certain conditions.</p></abstract>

Ice jams in northern rivers during winter period significantly change the flow conditions due to the extra boundary of the flow. Moreover, with the presence of bridge piers in the channel, the flow conditions can be further complicated. Ice cover often starts from the front of bridge piers, extending to the upstream. With the accumulation of ice cover, ice jam may happen during early spring, which results in the notorious ice jam flooding. In the present study, the concentration of flowing ice around bridge piers has been evaluated based on experiments carried out in laboratory. The critical condition for the initiation of ice cover around bridge piers has been investigated. An equation for the critical floe concentration was developed. The equation has been validated by experimental data from previous studies. The proposed model can be used for the prediction of formation of ice cover in front of a bridge pier under certain conditions.

Impacts of bridge piers on the initiation of ice cover – an experimental study

Hefei University of Technology, 193 Tunxi Road, Hefei, Anhui, China.

University of Regina, 3737 Wascana Pkwy, Regina, SK, Canada.

University of Northern British Columbia, 3333 University Way, Prince George, BC, Canada.

Journal of Hydrology and Hydromechanics

This chapter is distributed under the terms of the Creative Commons Attribution 4.0 Public License.

Ice jams in northern rivers during winter period significantly change the flow conditions due to the extra boundary of the flow. Moreover, with the presence of...

Impacts of bridge piers on the initiation of ice cover – an experimental study

Online veröffentlicht: 20. Okt. 2015

Seitenbereich: 327 - 333

Eingereicht: 04. März 2015

Akzeptiert: 19. Aug. 2015

DOI: https://doi.org/10.1515/johh-2015-0040

Schlüsselwörter
Arch-shaped congestion, Bridge pier, Ice cover, Ice floe concentration, Pier distance

© 2015 Jun Wang et al., published by De Gruyter Open

This chapter is distributed under the terms of the Creative Commons Attribution 4.0 Public License.

Impacts of bridge piers on the initiation of ice cover – an experimental study

Online veröffentlicht: 20. Okt. 2015

Seitenbereich: 327 - 333

Eingereicht: 04. März 2015

Akzeptiert: 19. Aug. 2015

DOI: https://doi.org/10.1515/johh-2015-0040

SchlüsselwörterArch-shaped congestion, Bridge pier, Ice cover, Ice floe concentration, Pier distance

© 2015 Jun Wang et al., published by De Gruyter Open

This chapter is distributed under the terms of the Creative Commons Attribution 4.0 Public License.

Schlüsselwörter
Arch-shaped congestion, Bridge pier, Ice cover, Ice floe concentration, Pier distance