水位变化对正倒锥体冰载荷影响的离散元分析1)

龙雪, 刘社文, 季顺迎

INFLUENCE OF WATER LEVEL ON ICE LOAD ON UPWARD-DOWNWARD CONICAL STRUCTURE BASED ON DEM ANALYSIS1)

Long Xue,Liu Shewen,Ji Shunying

表1 离散元计算的主要参数

Table 1 Main parameters of DEM calculation

Definition Symbol Value density of sea water Pw 1035.0 kg/m3 density of sea ice Pi 920.0 kg/m3 velocity of sea ice Vi 0.4 m/s thickness of sea ice h 0.23 m calculation area size of sea ice l x w 13.0 mx13.0 m elastic modulus of sea ice E 1.0 GPa diamete of particle cell dp 0.054 m total number of particle elements N 2.9x105 friction coefficient of particle element 0.2 coefficient of friction between sea ice and structure 0.2 salinity of sea ice S i 1.0 %〇 upper and lower surface temperatures of sea ice T -7.0°C,-1.73°C