In an era marked by escalating climate change and urban vulnerability,enhancing the resilience of infrastructure and communities has become critical.Advanced monitoring technologies are vital for providing real-time d...In an era marked by escalating climate change and urban vulnerability,enhancing the resilience of infrastructure and communities has become critical.Advanced monitoring technologies are vital for providing real-time data to assess and strengthen resilience,enabling proactive risk management and sustainable development.In this paper,a real-time distributed acoustic sensing(DAS)system was deployed at Nanjing University Xianlin Campus,Nanjing,China,utilizing a 3.8-km-long underground fiber-optic cable array.Continuous data collection has been conducted since February 2023.The effectiveness of the monitoring system in dynamically assessing and strengthening campus resilience is investigated.By analyzing power spectral density fluctuations and spatiotemporal correlations in DAS data,this study captures variations in campus activity patterns across different functional zones and time periods.The results demonstrate that DAS can effectively monitor human and environmental dynamics in real-time,providing data-driven insights for optimizing traffic management,resource allocation,and facility operations.Furthermore,the integration of DAS with the adaptive cycle framework enhances campus resilience during exploitation,conservation,release,and reorganization stages.This work validates the potential of DAS as a powerful tool for building resilient and sustainable urban environments.Its cost-effectiveness and high-resolution monitoring capabilities make it a promising solution for future urban development and resilience planning.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.42225702,42407250)the Natural Science Foundation of Jiangsu Province(Grant No.BK20241211)。
文摘In an era marked by escalating climate change and urban vulnerability,enhancing the resilience of infrastructure and communities has become critical.Advanced monitoring technologies are vital for providing real-time data to assess and strengthen resilience,enabling proactive risk management and sustainable development.In this paper,a real-time distributed acoustic sensing(DAS)system was deployed at Nanjing University Xianlin Campus,Nanjing,China,utilizing a 3.8-km-long underground fiber-optic cable array.Continuous data collection has been conducted since February 2023.The effectiveness of the monitoring system in dynamically assessing and strengthening campus resilience is investigated.By analyzing power spectral density fluctuations and spatiotemporal correlations in DAS data,this study captures variations in campus activity patterns across different functional zones and time periods.The results demonstrate that DAS can effectively monitor human and environmental dynamics in real-time,providing data-driven insights for optimizing traffic management,resource allocation,and facility operations.Furthermore,the integration of DAS with the adaptive cycle framework enhances campus resilience during exploitation,conservation,release,and reorganization stages.This work validates the potential of DAS as a powerful tool for building resilient and sustainable urban environments.Its cost-effectiveness and high-resolution monitoring capabilities make it a promising solution for future urban development and resilience planning.
