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Improved Hydraulic Simulation of Valve Layout Effects on Post-Earthquake Restoration of a Water Distribution Network

Author

Listed:
  • Jeongwook Choi

    (Department of Civil Engineering, Kyung Hee University, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Korea)

  • Doosun Kang

    (Department of Civil Engineering, Kyung Hee University, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Korea)

Abstract

To restore water pipes damaged by earthquakes, it is common to block the water flow by closing the associated shut-off valves. In this process, water supply suspension in the area connected to the isolated pipes is inevitable, which decreases the serviceability of the water distribution network (WDN). In this study, we identified the impact of valve layout (i.e., number and location) on system serviceability during a seismic damage restoration process. By conducting a pressure-driven-analysis (PDA) using EPANET 3.0, a more realistic hydraulic analysis could be carried out under the seismically damaged condition. Furthermore, by considering the valve-controlled segment in the hydraulic simulation, a more realistic water suspension area was determined, and efficient seismic damage restoration strategies were identified. The developed model was implemented on a WDN to demonstrate the effect of valve layout on the post-earthquake restoration process. Finally, effective restoration strategies were suggested for the application network.

Suggested Citation

  • Jeongwook Choi & Doosun Kang, 2020. "Improved Hydraulic Simulation of Valve Layout Effects on Post-Earthquake Restoration of a Water Distribution Network," Sustainability, MDPI, vol. 12(8), pages 1-20, April.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:8:p:3492-:d:350080
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    References listed on IDEAS

    as
    1. Enrico Creaco & Marco Franchini & Stefano Alvisi, 2010. "Optimal Placement of Isolation Valves in Water Distribution Systems Based on Valve Cost and Weighted Average Demand Shortfall," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 24(15), pages 4317-4338, December.
    2. Carlo Giudicianni & Manuel Herrera & Armando Nardo & Kemi Adeyeye, 2020. "Automatic Multiscale Approach for Water Networks Partitioning into Dynamic District Metered Areas," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(2), pages 835-848, January.
    3. Tonino Liserra & Marco Maglionico & Valentina Ciriello & Vittorio Di Federico, 2014. "Evaluation of Reliability Indicators for WDNs with Demand-Driven and Pressure-Driven Models," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 28(5), pages 1201-1217, March.
    4. Jeongwook Choi & Do Guen Yoo & Doosun Kang, 2018. "Post-Earthquake Restoration Simulation Model for Water Supply Networks," Sustainability, MDPI, vol. 10(10), pages 1-17, October.
    5. Yoo, Do Guen & Kang, Doosun & Kim, Joong Hoon, 2016. "Optimal design of water supply networks for enhancing seismic reliability," Reliability Engineering and System Safety, Elsevier, vol. 146(C), pages 79-88.
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