基于埋地管道的地震破坏机理,定量评价了单根管线在地震作用下的性能,采用蒙特卡罗法分析了网络的连通性,评价了管网系统的震害连通可靠性,以武汉市主干供水系统的抗震可靠性为例,验证了该方法可行、准确、高效,为进一步研究城市地下管线的抗震设计、优化、改造提供参考。 Based on the earthquake damage mechanism of buried pipelines, the performance of single pipelines under earthquake is quantitatively evaluated. The connectivity of the network is analyzed by Monte Carlo method and the reliability of seismic damage connectivity of pipe network system is evaluated. The reliability of the main water supply system is taken as an example to verify the feasibility, accuracy and efficiency of the proposed method and to provide reference for further research on the seismic design, optimization and reconstruction of urban underground pipelines.