随着基础设施建设力度的不断加大，隧道工程建设得到了空前发展。利用文献可视化软件VOSviewer对CNKI中收录的2001—2020年学术期刊进行统计，分析了近些年该领域文献发表数量、热点关键词等信息，并构建了关键词及作者机构结构图谱。结果表明： 1）从发文数量来看，近20年，隧道工程领域发文数量持续增长，大致经历了缓慢增长、增长和快速增长3个阶段； 2）隧道工程领域的研究大多以团队的形式参与研究，研究团队中通常有部分研究者发文数量占到了绝对领先，这些研究者一般也是研究团队核心； 3）可视化聚类分析结果得出目前隧道工程领域的研究热点主要集中在施工技术、特殊岩土和不良地质、稳定性分析、隧道类型、风险控制及动力分析等研究方向； 4）今后高精度勘探、机械化施工、隧道防排水体系、衬砌结构开裂、不良地质灾害预测、智能化建造等将成为新的关注方向。

 In the past two decades, tunnel engineering has achieved unprecedented development with a steady increase in infrastructure construction. In this study, a statistic based analysis of the academic journals between the years 2001 to 2020, which are included in CNKI, is conducted using the document visualization software VOSviewer. Information such as the number of documents published, and popular keywords used in recent years are analyzed, and a structural map of keywords and author institutions is constructed. The results indicate the following: (1) The number of documents published in the field of tunnel engineering has consistently increased over the last 20 years and has roughly experienced three stages, i.e., slow growth, stable growth, and rapid development. (2) Most studies in the field of tunnel engineering research are in the form of research teams. Some researchers in the team usually publish more papers, and these researchers are generally at the core of each research team. (3) The results of visual cluster analysis indicate that the research hotspots in the field of tunnel engineering are mainly concentrated in certain research directions such as construction technology, special geotechnical and unfavorable geology, stability analysis, tunnel type, risk control, and dynamic analysis. (4) Additionally, highprecision exploration, mechanized construction, tunnel waterproofing and drainage system, lining structure cracking, adverse geological disaster prediction, and intelligent construction will become new future avenues of research.