ABSTRACT
Enhancing resilience and ensuring the safe operation of underground infrastructure amidst complex disasters have become significant societal concerns. Shield tunnels, a critical component of underground infrastructure, are central to building resilient urban systems and maintaining urban service functions. Currently, decision-making for the resilience enhancement of shield tunnel structures heavily relies on practical experience. The integration of existing knowledge and the application of intelligent recommendation methods in this field remain underutilized, and there is a clear lack of scientific, efficient, and intelligent decision-making models for resilience enhancement. In response to these challenges, this paper proposes a novel method for constructing a knowledge graph based on ontology to enhance the resilience of shield tunnels. A domain ontology and a systematic process for building a knowledge graph were established in this study. The concepts and ontology related to resilience were delineated, utilizing a combination of top-down and bottom-up approaches. And then, a knowledge graph model layer was developed, encompassing 10 categories including resilience concept, structure type, indicator, disaster type, disaster mechanism, economic dimension, time dimension, strategy, measures, and schemes. A comprehensive knowledge graph framework, including application, rule, pattern, and data layers, was constructed accordingly. To populate the knowledge graph, resilience knowledge was extracted through expert empirical methods, facilitating the construction of the data layer via semantic networks and knowledge fusion. Ultimately, the storage, visualization, and decision-making recommendations for the knowledge graph were implemented using Neo4j graph database, achieving intelligent decision-making for enhancing resilience of shield tunnel structures based on knowledge ontology. The findings of this paper provide a methodological reference for effective, intelligent decision-making in resilience enhancement of shield tunnels, thereby promoting the protection of underground infrastructures from complex disasters.
