基于CiteSpace可视化分析下2013~2020年冻融岩石力学热点研究探析

2013年以来，随着寒冷地区资源开发利用与工程建设规模不断扩大，国内外冻融岩石力学研究发展迅速。论文以2013~2020年Web of Science和CNKI数据库收录的冻融岩石力学领域相关论文为数据源，使用文献可视化软件CiteSpace构建了国内外冻融岩石力学研究的关键词共现网络、热点知识演进时区视图和发文高产机构知识图谱，并进行了图谱可视化分析。结合统计结果与知识图谱研究发现：①国内外冻岩力学研究处于快速发展阶段，参与国家和创新性研究成果逐年增加，研究状态火热；②论文在核心期刊与研究机构中的分布集中度较高，企业、科研院所课题研究参与度较低，难以发挥“产学研”综合优势；③热点研究可概括为冻融岩石多尺度力学损伤特性、裂隙岩体冻融损伤机制、岩石本构模型及数值模拟研究；④岩石多场耦合作用、成熟研究成果的工程转化运用将是后续研究的重点关注方向。

Analysis on Hot Topics of Rock Mechanics Research in the Freeze-Thaw Environment from 2013 to 2020 Based on Visual Analysis of CiteSpace

Since 2013，with the implementation of the “Belt and Road” Initiative，the development and utilization of resources and the scale of engineering construction in cold regions along the way have been expanding.Research on the mechanical properties of frozen rocks in cold regions at home and abroad has developed rapidly，and many valuable academic results have been obtained.However，there is no paper that summarizes the hot topics and development trends of domestic and foreign research in recent years.In order to understand the research hotspots and development trends of rock mechanics under the freezing and thawing environment from 2013 to 2020，and to provide reference and innovation space for follow-up scholars in related research，bibliometric research was conducted in this paper.By selecting the search term of TS=（freeze-thaw OR freeze-thawing OR freezing and thawing OR freezing-thawing OR frozen-thawed） and TS=（rock OR rock mass） and SU=（freeze-thaw or freeze-thaw cycle） and SU=（rock or rock mass），the subject search was performed on the academic papers in the relevant direction included in the Web of Science foreign language database and the domestic CNKI database.CiteSpace cluster analysis selects the appropriate clustering threshold and pruning method（Pathfinder），and a visually intuitive domestic freeze-thaw rock mechanics research organization cooperation network， keyword co-occurrence network， and hot research evolution time zone view knowledge map was constructed through the visual analysis of the built-in software system of Institution，Keyword，and Timezone View functions.Through comprehensive statistical analysis results of papers and the clustering structure of the knowledge map，it is found that the research on freeze-thaw rock mechanics at home and abroad is in a rapid development stage.The participating countries and research results are increasing year by year，and the research status is hot.The distribution of core journals is relatively high.As a representative journal of the research direction of rock mechanics in China，14.8% of academic papers are included in Rock and Mechanics Engineering，Rock and Soil Mechanics，and Geotechnical Engineering，indicating that a series of innovations have emerged in domestic frozen rock research achievements.The distribution of core research institutions is obvious.The University of Chinese Academy of Sciences，Central South University，and Xi’an University of Science and Technology play a key role in the cooperative network structure of publishing institutions.However，the participation of enterprises and scientific research institutes in project research is relatively low，and it is difficult to give full play to “production，study and research” comprehensive advantages，a single research model will not be conducive to the development of domestic frozen rock mechanics.The research hotspots can be summarized as research on multi-scale mechanical damage characteristics of freeze-thaw rocks，research on fractured rock mass freeze-thaw damage mechanisms，rock freeze-thaw damage constitutive models and numerical simulation research.The multi-field coupling study of rock under freezing and thawing conditions and the engineering transformation of mature research results will be the focus of subsequent related research.