Abstract:
Objective Despite considerable progress in prefabricated metro station technology in China, its large-scale promotion and application remain constrained by multiple factors. It is therefore necessary to systematically review the current application status of domestic prefabricated metro stations, clarify the characteristics of the technical system, and envision its future development trends.
Method The application practices of prefabricated stations in China are systematically reviewed. Based on structural forms, the stations are classified into three categories, namely, fully prefabricated, precast composite, and permanent-temporary combined. The characteristics and applicability of each category are analyzed in detail. The analysis identifies bottlenecks of prefabricated station technology in cost control, standardization, adaptability to complex working conditions, and coordination with surrounding development. The constraints on the technology are thoroughly examined, and its development trends are discussed.
Result & Conclusion Three concepts for research and application of prefabricated technology are proposed: intensification, resilience, and practicality. It is recommended to integrate informatization and artificial intelligence (AI) technologies to empower the whole-process design, construction, operation, and maintenance management of prefabricated stations, thereby comprehensively improving construction efficiency and achieving cost reduction, quality improvement, and efficiency enhancement in engineering projects.