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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 on-the-spot observation data of sea ice in the Bohai Sea, the basic characteristics of overlapped ice are analyzed. The mechanical model for calculating the overlapping length of one-dimensional overlapped ice and two-dimensional ice is established by comprehensively considering the buckling failure and crush failure modes in the overlap of sea ice Based on this, the overlap length of sea ice under different ice thicknesses was calculated. The results show that the overlap length of sea ice is mainly determined by the sea ice buckling failure conditions. Under the same ice thickness, the overlap length of finger ice is about 1/2 of one-dimensional overlapped ice.