DYNAMIC SEISMIC RESILIENCE ASSESSMENT METHOD FOR WATER DISTRIBUTION NETWORKS BASED ON SYSTEM DYNAMICS

Urban water distribution network is an important part of lifeline engineering. With the development of the research and construction of resilient cities, it becomes a practical need to re-examine the comprehensive disaster prevention and mitigation capability of water distribution networks from the perspective of resilient cities and to establish a quantitative resilience assessment method that can effectively reflect the post-earthquake recovery process of water distribution networks. A characterization of the four-stage recovery process of water distribution networks after an earthquake was proposed based on the investigation of the typical post-earthquake recovery process of water distribution networks. Then, a dynamic seismic resilience assessment method for water distribution networks at the emergency and relief stages was proposed based on system dynamics theory. This method can not only effectively reflect the changing characteristics of water demand requirements from crowd and fire after an earthquake disaster, but also effectively assess the impact of rescue resources on the functional recovery of the network, and finally realize the dynamic seismic resilience assessment of the water distribution network.