摘要
基于渤海海冰现场观测资料 ,分析了重叠冰的基本特征 ;综合考虑海冰重叠过程中的屈曲破坏和挤压破坏模式 ,建立了计算一维重叠冰和二维指状冰重叠长度的力学模型 ,并依此对不同冰厚条件下的海冰重叠长度进行了计算。结果表明 :海冰重叠长度主要由海冰屈曲破坏条件来决定 ;在相同冰厚条件下 ,指状冰的重叠长度约为一维重叠冰的 1 / 2左右。
Based on the information of the field observation in the Bohai Sea,the basic characteristics of rafted ice are analyzed.By considering the compressive failure and buckling failure in the rafting process,the mechanical models are established to calculate the rafting lengths of one dimensional rafting ice and twodimensional finger ice.The rafting lengths are calculated for different conditions of ice thickness.The calculated results show that the rafting length of sea ice are mainly dominated by the buckling failure of ice cover.Under the same thickness of ice,the rafting length of finger ice is about one half of that of one dimensional rafted ice.
出处
《中国海洋平台》
2001年第5期12-16,共5页
China offshore Platform
基金
国家自然科学基金
中国海洋石油渤海公司联合资助重点项目 (5 973 91 70 )
