Earticle

초록

영어

Studies on the prediction of water distribution pipeline damage and the evaluation of disaster resilience in water supply systems have been conducted. However, much of this work relies on simplified indicators, such as the number of damaged pipelines per unit length of a network. These approaches result in inherent limitations in assessing the functional performance of an entire water supply system, and quantitative evaluation methods that effectively support pre-disaster mitigation planning and post-disaster recovery decision-making have not yet been sufficiently established. The purpose of this study is to develop a quantitative assessment method for evaluating seismic reinforcement of pipeline systems and the improvement of pre-disaster mitigation measures. In addition, we propose a new approach to assess disaster impact on pipeline network systems using pipeline network analysis and a discrete water pipeline damage estimation method. Specifically, a discrete pipeline damage estimation framework combined with Monte Carlo simulation is applied to estimate the number of pipeline failures caused by seismic hazards. Pipeline network analysis under earthquake conditions is then conducted while explicitly accounting for pipeline damage. In this study, seven indicators were developed for assessment of water pipeline network resilience: 1) water pressure, 2) interruption of critical facilities during disasters, 3) firefighting capability, 4) outage population, 5) outage impact on elderly people, 6) water quality, and 7) impact on high-rise households. The earthquake disaster impact assessment on the water distribution system is conducted by comparing conditions during normal times with those during disasters. The developed method provides a comprehensive framework for quantitatively evaluating the disaster resilience of water distribution systems. In addition, the results indicate that this approach offers a practical and informative basis for evaluating improvements in seismic reinforcement and mitigation measures, and contributes to more effective predisaster preparedness planning and post-disaster recovery strategies.

저자

• Naoto Ichimura [ Disaster Mitigation Research Center, Nagoya University; Nippon Koei Co., Ltd. ]
• Nagahisa Hirayama [ Disaster Mitigation Research Center, Nagoya University; Nippon Koei Co., Ltd. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국재난정보학회 학술발표대회

• 간기

  부정기

• 수록기간

  2005~2026

• 십진분류

  KDC 338 DDC 361