Proposed resilience index of water lifeline systems
Proposed resilience index of water lifeline systems
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DOI：
10.1108/ijdrbe-04-2020-0030
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发表时间：
2020-10
影响因子：
1.6
通讯作者：
A. M. S. Carandang;L. Garciano;O. Maruyama;R. D. Jesus
中科院分区：
文献类型：
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作者：
A. M. S. Carandang;L. Garciano;O. Maruyama;R. D. Jesus
供水管网（wdn）必须全天候向用户供水。在强烈地震事件发生后，这一重要服务的中断阻碍了灾后活动，并造成了健康和卫生问题。因此，wdn必须能够在主要地震事件发生后快速恢复服务。这种恢复供水的能力可以作为衡量恢复能力的指标。本文的目的是通过开发一个框架来量化弹性，该框架将各种恢复策略转化为多源WDN的改进弹性度量。设计/方法/方法本文采用定量风险评估方法开发了WDN复原力量化框架。本研究采用Prim算法、Horn算法和最大斜率法进行恢复分析。本文给出了不同修复情景下WDN的恢复指数。在此基础上，利用恢复力指标确定了对假设的1级和2级地震事件破坏的WDN进行最有效和优化的修复方案。本研究开发的框架只关注弹性的鲁棒性、快速性和智谋性。实际意义本研究旨在帮助水区对水网进行维护、维修和抗震评估。研究结果可用于制定当地水区的灾害管理计划，以修复可能的管道。本研究为今后更复杂、更全面的考虑最优恢复序列的湿地恢复力量化研究提供了一个起点。本文提出的WDN弹性量化框架具有独创性，它使用最优恢复策略来表示弹性的快速性。
Purpose Water distribution networks (WDNs) must deliver water to its customers 24/7. Disruption of this important service after a strong seismic event impedes post-disaster activities and poses health and sanitation problems. Hence, WDNs must be able to quickly restore services after the occurrence of a major seismic event. This ability to return the water service can be a metric for resilience. The purpose of this paper is to quantify the resilience by developing a framework that translates various restoration strategies into an improved resilience measure for a multisource WDN. Design/methodology/approach This paper used a quantitative risk assessment method in developing the framework for the resilience quantification of WDN. Prim’s algorithm, Horn’s algorithm and maximum slope method are used for the restoration analysis conducted in this study. Findings This paper provides resilience indices of the WDN for each repair scenarios. Then, the resilience indices are used to determine the most efficient and optimized repair scenario to restore the hypothetically damaged WDN owing to Level 1 and Level 2 seismic events. Research limitations/implications The developed framework of this study only focuses on the robustness, rapidity and resourcefulness properties of resilience. Practical implications This study aims to help the water district in the maintenance, repair and evaluation of WDN against seismic events. The results from the study can be used in preparing the disaster management plan of the local water district to repair possible pipelines. This study also serves as a starting point to more complex and comprehensive research about the resilience quantification of WDNs with the consideration of optimal restoration sequence in the future. Originality/value The developed framework in the resilience quantification of WDN is original, as it uses optimal restoration strategies to represent the rapidity property of resilience.