ICE INDENTATION TEST ON CONSOLIDATED LAYER MODEL MADE OF SALINE AND FRESHWATER ICE BLOCKS

• Main Author: Takahiro Takeuchi Akiyoshi Soejima
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: KEY WORDS; Ice load; Deformed ice; Consolidated layer; Hydraulic structures; Ice Sheet; ice covered areas
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.497.3108; http://web2.clarkson.edu/projects/iahrice/IAHR 2006/contents/30_s134.pdf

Deformed ice such as an ice ridge or an ice rubble field may impose a large load on hydraulic structures in ice-covered areas due to its large thickness (h) and consolidated layer. A consolidated layer, which is considered to have higher strength than a sail or a keel, is modeled in a cold room for ice indentation tests. It is rational that an ice load imposed by a consolidated layer of deformed ice should be compared with that imposed by the surrounding (un-deformed) ice sheet, since many ice load equations for level ice sheets have been suggested. In this paper, the ice load of deformed ice is compared with that of level (un-deformed) ice through ice indentation tests, using saline and freshwater ice sheets. Indentation velocity (V) and cubic ice block size (a) were varied, and the effects of (a/h), (V/h) and ice failure on the ice load were investigated.