黄河冰花冰晶体结构及内部气泡分析  

Analysis of Crystal Structure and Internal Bubbles of the Yellow River Ice

作　　者：王娟[1] 王少锋[1] 邓宇[2] 张宝森[2] 李志军[3] WANG Juan;WANG Shaofeng;DENG Yu;ZHANG Baosen;LI Zhijun(School of Water Conservancy and Transportation,Zhengzhou University,Zhengzhou 450001,China;Yellow River Institute of Hydraulic Research,YRCC,Zhengzhou 450003,China;State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116042,China)

机构地区：[1]郑州大学水利与交通学院,河南郑州450001 [2]黄河水利委员会黄河水利科学研究院,河南郑州450003 [3]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116042

出　　处：《人民黄河》2024年第5期63-67,共5页Yellow River

基　　金：国家自然科学基金联合基金项目(U23A2012);黄河水利科学研究院基本科研业务费专项(HKY-JBYW-2022-08)。

摘　　要：黄河冰花冰物理性质独特,对冰凌的生消演变有很大影响。为深入认知冰花冰晶体结构的物理特性,利用冰样采样器对黄河头道拐河段的冰花冰进行采集,利用费氏台获取冰花冰的图像,分析冰晶体及气泡细观结构特征。结果表明:在垂直方向上,冰晶体的平均等效直径范围为1.48~5.85 mm,随深度增加逐渐增大;在同一水平面内,冰晶体粒径差别明显,微小晶粒占比较大;冰花冰主要由0.1~7.0 mm的晶粒组成,直径为0.1~1.0 mm的微小晶粒占比为47.54%;冰花冰气泡平均等效直径在0.3~0.7 mm之间变化,随深度增加逐渐增大;气泡含量在1.90%~6.76%波动,随着深度增加逐渐减小。The physical properties of the Yellow River ice are unique,which play an important role in the evolution of the ice.In order to deeply understand the microstructural characteristics of frazil ice,the frazil particles in the Toudaoguai section of the Yellow River were collected by a sampler,and the images of frazil ice were taken under the Fedorov stage to analyze the microstructural characteristics of crystals and bubbles.The results show that the average equivalent diameter of each plane in the vertical direction ranges from 1.48~5.85 mm,and increases with the increase of depth.In the same horizontal direction,the grain size is different obviously,and the proportion of micro-grain is larger.The frazil ice is mainly composed of 0.1~7.0 mm grains,and the proportion of micro-grain with diameter of 0.1~1.0 mm is 47.54%.The average equivalent diameter of the bubbles is in the range of 0.3~0.7 mm,and increases with the depth.The content of the bubbles is in the range of 1.90%~6.76%,and decreases with the increase of depth.

关 键 词：冰花冰 冰晶体 气泡含量 细观结构 黄河 

分 类 号：TV875[水利工程—水利水电工程] TV882.1