【摘要】 本文提出了地震作用下供水系统的渗漏模型,发展了地震后带渗漏管网的流分析技术,结合一次二阶矩方法获得了地震后供水管网的功能可靠度。针对供燃气管网系统则提出了一类高效精确的大型网络抗震连通可靠度分析的概率解析算法———递推分解算法。以上述管网抗震可靠性分析理论为基础,分别发展了基于模拟退火算法的供水系统网络拓扑优化分析理论和基于遗传算法的供燃气网络系统拓扑优化理论。更多还原

【Abstract】 In this paper,a leakage model is used to describe the damaged state of buried pipelines under an earthquake.Combining this model with the general hydraulic method,a new approach based on the first-order reliability method is derived to analyze the seismic capability reliability of a water distribution system.For a gas network,the recursive decomposition algorithm is proposed to analyze the seismic connectivity reliability.Based on the seismic capability reliability approach of the water distribution system,a method is developed to optimize the network topology using the simulated annealing algorithm.Combining with the recursive decomposition algorithm,the genetic algorithm is used to optimize the gas network topology.Two large-scale networks,water distribution system and gas network of Shenyang City are also investigated in detail.更多还原