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Liquefaction fragility of sewer pipes derived from the case study of Urayasu (Japan).

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Title: Liquefaction fragility of sewer pipes derived from the case study of Urayasu (Japan).
Authors: Baris, Anna1 (AUTHOR) anna.baris@unicas.it, Spacagna, Rose Line1 (AUTHOR), Paolella, Luca1 (AUTHOR), Koseki, Junichi2 (AUTHOR), Modoni, Giuseppe1 (AUTHOR)
Source: Bulletin of Earthquake Engineering. Aug2021, Vol. 19 Issue 10, p3963-3986. 24p.
Subject Terms: *Sewer pipes, *Earthquake hazard analysis, *Drainage, *Tsunami damage, *Biomass liquefaction, *Urbanization, *Subsoils, *Earthquakes
Geographic Terms: Japan
Abstract: The damage on supply and drainage water networks is a serious cause of economic disruption for urban systems affected by earthquakes. Among various concerns, the ruptures of sewer pipes and manholes generated by liquefaction determine a particularly severe sanitary hazard and require extensive, costly and time-consuming repairs. Quantitative risk assessment carried out with the characterisation and geographical mapping of seismic hazard, subsoil susceptibility, physical and functional vulnerability of the exposed elements, enables to estimate losses, identify weaknesses, inspire strategies to mitigate the impact of earthquakes and improve resilience. The present study deals with the physical vulnerability of sewer pipelines. Empirical fragility functions are derived from the evidences of liquefaction induced in Urayasu (Japan) by the 2011 Tohoku-Oki earthquake (Mw9.0). The spatial distribution of seismic signals, subsoil characteristics, pipes and surveyed damages are reconstructed in a GIS platform. An articulated methodology is developed to correlate variables and compensate their limited spatial correspondence, exploiting the complete coverage of the area with terrestrial settlements measured by LiDAR and their strong correlation with damage. Finally, ruptures of pipes are probabilistically quantified adopting a common liquefaction severity indicator as engineering demand parameter and measuring the efficiency of relations with statistical tests. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 151400687
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Liquefaction fragility of sewer pipes derived from the case study of Urayasu (Japan).
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  Data: <searchLink fieldCode="AR" term="%22Baris%2C+Anna%22">Baris, Anna</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> anna.baris@unicas.it</i><br /><searchLink fieldCode="AR" term="%22Spacagna%2C+Rose+Line%22">Spacagna, Rose Line</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Paolella%2C+Luca%22">Paolella, Luca</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Koseki%2C+Junichi%22">Koseki, Junichi</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Modoni%2C+Giuseppe%22">Modoni, Giuseppe</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Earthquake+Engineering%22">Bulletin of Earthquake Engineering</searchLink>. Aug2021, Vol. 19 Issue 10, p3963-3986. 24p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Sewer+pipes%22">Sewer pipes</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Drainage%22">Drainage</searchLink><br />*<searchLink fieldCode="DE" term="%22Tsunami+damage%22">Tsunami damage</searchLink><br />*<searchLink fieldCode="DE" term="%22Biomass+liquefaction%22">Biomass liquefaction</searchLink><br />*<searchLink fieldCode="DE" term="%22Urbanization%22">Urbanization</searchLink><br />*<searchLink fieldCode="DE" term="%22Subsoils%22">Subsoils</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquakes%22">Earthquakes</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Japan%22">Japan</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The damage on supply and drainage water networks is a serious cause of economic disruption for urban systems affected by earthquakes. Among various concerns, the ruptures of sewer pipes and manholes generated by liquefaction determine a particularly severe sanitary hazard and require extensive, costly and time-consuming repairs. Quantitative risk assessment carried out with the characterisation and geographical mapping of seismic hazard, subsoil susceptibility, physical and functional vulnerability of the exposed elements, enables to estimate losses, identify weaknesses, inspire strategies to mitigate the impact of earthquakes and improve resilience. The present study deals with the physical vulnerability of sewer pipelines. Empirical fragility functions are derived from the evidences of liquefaction induced in Urayasu (Japan) by the 2011 Tohoku-Oki earthquake (Mw9.0). The spatial distribution of seismic signals, subsoil characteristics, pipes and surveyed damages are reconstructed in a GIS platform. An articulated methodology is developed to correlate variables and compensate their limited spatial correspondence, exploiting the complete coverage of the area with terrestrial settlements measured by LiDAR and their strong correlation with damage. Finally, ruptures of pipes are probabilistically quantified adopting a common liquefaction severity indicator as engineering demand parameter and measuring the efficiency of relations with statistical tests. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=151400687
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s10518-020-00957-2
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 24
        StartPage: 3963
    Subjects:
      – SubjectFull: Sewer pipes
        Type: general
      – SubjectFull: Earthquake hazard analysis
        Type: general
      – SubjectFull: Drainage
        Type: general
      – SubjectFull: Tsunami damage
        Type: general
      – SubjectFull: Biomass liquefaction
        Type: general
      – SubjectFull: Urbanization
        Type: general
      – SubjectFull: Subsoils
        Type: general
      – SubjectFull: Earthquakes
        Type: general
      – SubjectFull: Japan
        Type: general
    Titles:
      – TitleFull: Liquefaction fragility of sewer pipes derived from the case study of Urayasu (Japan).
        Type: main
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    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Baris, Anna
      – PersonEntity:
          Name:
            NameFull: Spacagna, Rose Line
      – PersonEntity:
          Name:
            NameFull: Paolella, Luca
      – PersonEntity:
          Name:
            NameFull: Koseki, Junichi
      – PersonEntity:
          Name:
            NameFull: Modoni, Giuseppe
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          Dates:
            – D: 01
              M: 08
              Text: Aug2021
              Type: published
              Y: 2021
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              Value: 1570761X
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              Value: 19
            – Type: issue
              Value: 10
          Titles:
            – TitleFull: Bulletin of Earthquake Engineering
              Type: main
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