【作者】 黄文峰； 张丽敏； 李志军； 刘普； 李广伟；

【Author】 HUANG Wenfeng,ZHANG Limin,LI Zhijun,LIU Pu,LI Guangwei (State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian,Liaoning 116024)

【机构】 大连理工大学海岸和近海工程国家重点实验室；

【摘要】 为考察实验室冻结冰对天然淡水冰模拟的相似程度,对取自黑龙江红旗泡水库的天然冰样和实验室冻结的人工冰样进行冰晶类型、晶体平均尺寸、冰内气泡宏观形态、气泡含量和分布对比发现:天然冰上层为颗粒冰晶,中下层为柱状冰晶,冰晶粒径随深度增加,气泡含量及其等效直径均随深度减小。人工冰沿厚度方向几乎全为柱状冰晶,冰晶粒径随深度增加,气泡含量随深度减小。天然冰和人工冰密度—气泡关系曲线较为吻合。更多还原

【Abstract】 To evaluate the extent how the laboratory frozen ice models the natural freshwater ice,by inner structural analysis and comparison of ice sampled from Hongqipao Reservoir in Heilongjiang province and Laboratory,types and mean diameter of ice crystals,and macro—shapes and quantitative distribution of air bubbles in ice were obtained,and similarities and differences of every ice parameter involved were analyzed. The results are as follows:the up layer of natural ice is granular ice,the middle and down layers columnar ice;The mean crystal sizes increase and concentration of air bubbles decrease with depth.The artificial ice is almost columnar crystal;Crystal sizes and concentration of bubbles,respectively,have similar tendency with those of natural ice with depth increasing.And the density—content of air bubbles curves match each other, which indicates a good conformity.更多还原