Author(s): Robert Ettema

Linked Author(s):

Keywords:

Abstract: Described herein are results of a laboratory study aimed at investigating the proposition that wall (or bank) resistance may initiate jamming of comparatively small ice pieces conveyed in prismatic channels. Ice-jam literature suggests that jams are initiated only by obstructions, such as channel constrictions, bridge piers or single-layer-thick assemblages of large ice pieces spanning a congested section of channel. The experiments show that wall resistance can initiate jamming, though the lengths of wall, or channel, required to do so are relatively long. In rivers, jams are more readily initiated by channel obstructions such as constricted bridge crossings, sand bars, etc.

DOI: https://doi.org/10.1080/00221689009499018

Year: 1990