Abstract:

The development and utilization of urban underground spaces play a vital role in bolstering national defense preparedness and enhancing the overall disaster prevention capabilities of cities. While China has made significant strides in scaling up underground infrastructure construction at a rapid pace, it still struggles with issues such as outdated planning and elevated construction and operational risks. To enhance China′s underground space engineering resilience and quality, the authors define the key characteristics of urban underground space engineering resilience and explore methods to enhance it throughout the space′s entire life cycle. The analysis leads to the following conclusions: (1) Engineering resilience must be improved across the entirelife cycle, including planning, investigation, design, construction, and operation and maintenance, thus necessitating a systematic and holistic approach. (2) Embracing urban renewal technology, resiliencefocused structures and materials as well as intelligent construction and operation and maintenance, are crucial avenues for resilience enhancement. (3) Therefore, seven key construction techniques are proposed to strengthen the urban function and disaster prevention and mitigation capabilities by enhancing the engineering resilience of urban underground space.

Key words: urban underground space, engineering resilience; entirelife cycle, resilience improvement, disaster prevention and mitigation