Monitoring Studies of Shield Tunnels in Geotechnical Engineering: A Systematic Literature Review and Trend Analysis

In the field of shield tunnel engineering, with the acceleration of urbanization, the research on tunnel monitoring continues to expand. Therefore, this paper uses the systematic bibliometric analysis method to comprehensively sort out and visually reveal the evolution path and academic pattern of shield tunnel monitoring research. Compared with the early research based on single monitoring technology, the current research focuses more on the settlement prediction and the construction of intelligent monitoring system. Based on the bibliometrix package of R language, this paper carried out bibliometric research from multiple dimensions, including annual literature growth trend, identification of representative scholars, high-yield national statistics, analysis of highly cited literature, and distribution of core journals and research institutions. The results show that the research on shield tunnel monitoring has gradually developed since 2000, and entered a rapid growth stage after 2020. With the continuous evolution of technology and the expansion of data scale, this study provides a certain data support and analysis paradigm for the development of subsequent tunnel monitoring technology.