国际城市地下综合管廊研究的文献特征与研究热点分析

为揭示地下综合管廊领域的知识结构和发展脉络，明晰地下综合管廊领域的研究热点和前沿，以Web of Science和Scopus数据库中1970—2018年收录的综合管廊相关文献为研究对象，借助可视化软件CiteSpace绘制综合管廊研究知识图谱，对综合管廊研究进行发展态势分析、合作特征分析、文献共被引分析以及关键词共现分析。研究发现：目前综合管廊研究呈快速发展的趋势；研究成果较为丰硕的国家为中国、美国、西班牙、英国、加拿大、日本，最富有成效的作者为Curiel Esparza J和Canto Perello J；研究热点主要集中在可行性、决策、投融资、规划、设计、施工、风险、安全、运维、管理方面；未来综合管廊研究趋势与热点将集中在投融资模式创新与应用、绿色建造技术及一体化建设、信息化及智能化运维管理、可持续发展等方面。最后，对综合管廊后续研究提出加强跨学科合作和治理研究的建议。

Literature Characteristics and Research Hotspots of International Urban Underground Utility Tunnel Research： Visualized Quantitative Research Based on CiteSpace

The knowledge structure and evolutionary path of the field of underground utility tunnel and the hotspots and frontiers of the research of the utility tunnel are of great significance. Hence, the utility tunnel literatures collected in the Web of Science and Scopus database from 1970 to 2018 are taken as references, the visualization software CiteSpace is used to draw the knowledge maps of utility tunnel research, and the research development trend analysis, co authored feature analysis, literature co citation analysis and keyword co occurrence analysis are carried out. The study results show that: (1) The current research of utility tunnel shows a rapid development trend. (2) Countries with rich research achievements are China, the United States, Spain, the United Kingdom, Canada and Japan, and the most productive authors are Curiel Esparza J and Canto Perello J. (3) The research focuses on feasibility, decision making, investment and financing, planning, design, construction, risk, safety, operation and maintenance, and management. (4) Future research trends and hotspots of utility tunnel will focus on innovation and application of investment and financing models, green construction technologies and integration construction, informatization and intelligent operation and maintenance management, sustainable development, etc. Finally, suggestions about strengthening interdisciplinary cooperation and paying more attention to research on utility tunnel governance are proposed.