[1]LONG Li,ZHENG Shansuo,YANG Yong,et al.Research on the Recovery Strategy of the Urban Water Supply Networks after an Earthquake[J].Journal of Seismological Research,2022,45(03):352-361.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0034
]
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
45
Number of periods:
2022 03
Page number:
352-361
Column:
生命线工程系统抗震防灾专栏
Public date:
2022-06-20
- Title:
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Research on the Recovery Strategy of the Urban Water Supply Networks after an Earthquake
- Author(s):
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LONG Li1; ZHENG Shansuo2; YANG Yong3; ZHOU Yan4
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(1.College of Architecture and Civil Engineering,Chengdu University,Chengdu 610106,Sichuan,China)(2.School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China)(3.Northwest Research Institution of Engineering and Design,Xi'an 710003,Shaanxi,China)(4.College of Civil Engineering and Architecture,China Three Gorges University,Yichang 443002,Hubei,China)
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- Keywords:
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water supply networks; decision of post-earthquake recovery; resilience assessment; multi-objective optimization
- CLC:
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TU991.33; P315.9
- DOI:
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10.20015/j.cnki.ISSN1000-0666.2022.0034
- Abstract:
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In order to make reasonable decisions for post-earthquake repair of the urban water supply networks and improve the networks' seismic resilience,a service satisfaction index of the water supply and an importance index of the earthquake-damaged pipelines are defined and a two-stage recovery strategy for the water supply networks after the earthquake is proposed.In the first stage,to ensure the water supply for as many user nodes as possible,the dynamic importance of water supply is set as the importance index for repairing the burst pipeline.In the second stage,focusing on fastest improving the networks' resilience index,the static importance of water supply is set as the importance index for repairing the leaking pipeline.A multi-objective optimal regulation model that involves the hydraulic recovery index,repair time and repair cost of the networks is established,and the genetic algorithm is used to solve the multi-objective optimal regulation model.The model is applied to a small water supply network for case study,and the results show that the total repair time,total repair cost and hydraulic recovery index calculated based on the multi-objective optimal regulation model differ from the corresponding optimal results from the single objective optimal regulation model by 0.06%,0.03% and 2%,respectively.The plan for emergency repair and regulation based on multi-objective optimal regulation model produces a higher resilience index for pipe networks than the plan does based on single objective optimal regulation model that only involves hydraulic recovery index.This plan is high-efficient,low-cost and helps to obtain a high hydraulic recovery index.