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首页> 外文会议>International conference on port and ocean engineering under arctic conditions >FIELD INVESTIGATIONS OF FIRST YEAR ICE MECHANICAL PROPERTIES IN NORTH-WEST BARENTS SEA
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FIELD INVESTIGATIONS OF FIRST YEAR ICE MECHANICAL PROPERTIES IN NORTH-WEST BARENTS SEA

机译：西北部冰镇冰镇冰机械性能的现场调查

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摘要

The paper contains description and results of investigations of first year ice mechanical properties that were performed during last four years in fiords of Svalbard, as well as in Barents Sea areas close to the archipelago. During the fieldwork, measurements of the ice temperature and salinity profiles through the ice thickness were carried out, and the ice flexural strength was determined through the cantilever beams bending. New equations for calculation of the sea ice flexural strength have been constructed using the measured profiles of temperature and salinity through the ice thickness, and the derived formulas were compared with ones proposed by other authors or applicable for other freezing seas. As the results have shown, flexural strength of ice in fiords of Svalbard is close to the corresponding values of the Barents Sea ice, but all the considered equations for various regions differ from each other. Mostly this is because not only the ice temperature and salinity effect on flexural strength, but also the ice inner structure and deforming that, in turn, depend on weather conditions and ice regime in specified region. Flexural strength values determined cantilever beam tests are less than those obtained according to Timco&O'Brien equation for low ice salinity. The results of numerical simulation of the floating cantilever beam bending using FEM were applied to analysis tensile stress distribution in the most loaded root section of the beam.
机译：本文包含的描述并在过去四年里在斯瓦尔巴德群岛的峡湾在巴伦支海地区接近群岛执行的，以及第一年的冰机械性能的调查结果。实地调查期间，冰的温度和盐度廓通过冰厚度的测量进行，并且通过悬臂确定的冰抗弯强度弯曲梁。通过冰厚度使用温度和盐度的测量的概况已构建的海冰挠曲强度计算新的方程，和所导出的公式与由其他作者或适用于其它冷冻海域提出那些进行比较。如结果所显示的，在斯瓦尔巴的峡湾冰的弯曲强度是接近巴伦支海冰的相应值，但对于所有各个区域所考虑方程彼此不同。大多这是因为不仅冰温度和挠曲强度盐度效果，而且还冰内部结构和变形，反过来，取决于天气条件和在指定区域冰制度。测定悬臂梁测试弯曲强度值小于根据TIMCO＆奥布莱恩方程低冰盐度获得的那些。浮动悬臂梁使用FEM弯曲的数值模拟的结果在光束的最装根部分分别适用于分析拉应力分布。

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