中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (2): 135-142.doi: 10.16265/j.cnki.issn 1003-3033.2021.02.019

• 公共安全 • 上一篇    下一篇

地震灾害下城市供水网络韧性评估及优化研究

韩林, 赵旭东 讲师, 陈志龙 教授, 龚华栋 副教授   

  1. 陆军工程大学 爆炸冲击防灾减灾国家重点实验室,江苏 南京 210007
  • 收稿日期:2020-11-01 修回日期:2021-01-05 出版日期:2021-02-28 发布日期:2021-08-18
  • 作者简介:韩 林 (1995—),男,山东菏泽人,硕士研究生,研究方向为关键基础设施防护。 E-mail: sdhzhl1@163.com。
  • 基金资助:
    国家自然科学基金资助(51708554);江苏省自然科学基金资助(BK20181336)。

Seismic resilience assessment and optimization of urban water distribution network

HAN Lin, ZHAO Xudong, CHEN Zhilong, GONG Huadong   

  1. State Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University of PLA, Nanjing Jiangsu 210007, China
  • Received:2020-11-01 Revised:2021-01-05 Online:2021-02-28 Published:2021-08-18

摘要: 为提升城市供水网络应对地震灾害的能力,基于性能响应函数(PRF)方法,引入基础设施网络均衡理论,设计综合考虑城市供水网络物理状态和输送能力的性能时程响应函数,构建贯穿结构和功能双维度的地震灾害下城市供水网络韧性评估方法;从灾害概率、灾害后果、恢复速度、恢复程度等4个关键因素出发,提出城市供水网络网状扩张、管道延性改造、增加恢复资源和提升恢复储备等韧性优化策略;以我国华东某市供水网络为例,定量评估不同优化策略下的韧性提升效果,提出不同决策场景下恢复资源r和恢复储备b的优化配置方法。结果表明:管网延性改造是提升供水网络韧性的有效措施,网状扩张能提升供水网络性能,但对韧性提升无明显作用,网状扩张后要注意增加网络恢复资源和恢复储备。

关键词: 地震灾害, 供水网络, 韧性评估, 优化策略, 性能响应函数(PRF)

Abstract: In order to improve capabilities of urban water distribution network to cope with earthquake disasters, based on PRF method and considering urban water supply network's physical state and delivery capacities, a network equilibrium theory was proposed and a PRF designed before a seismic resilience assessment methodology of the network was established for evaluation in both structural and functional dimensions. Secondly, from perspectives of four key features of resilience: damage probability, damage consequence, recovery speed and recovery degree, optimization strategies, including network meshed expansion, pipeline ductile retrofitting, increasing recovery budget and recovery resource, were proposed and discussed. Finally, case studies were conducted on a water distribution network in East China to quantitatively assess resilience enhancement effects of different strategies, and optimal allocation methods of recovery resource r and recovery budget b under different decision scenarios were put forward. The results show that pipeline ductile retrofitting is an effective way to significantly enhance seismic resilience of water distribution network, and meshed expansion can improve network's performance but has no significant effect on its resilience. Recovery resources and recovery budget should be increased after meshed expansion.

Key words: earthquake disasters, water distribution network, resilience assessment, optimization strategies, performance response function (PRF)

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