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

Jeongwook Choi and Doosun Kang
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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

Sustainability, 2020, vol. 12, issue 8, 1-20

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.

Keywords: pressure driven analysis; seismic damage; system restoration; valve-controlled segment; water distribution network (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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