A comparative study of buried pipeline fragilities using the seismic damage to the Byblos wastewater network

Nisrine Makhoul, Christopher Navarro, Jong Sung Lee, Philippe Gueguen

Research output: Contribution to journalArticlepeer-review


The seismic damage to buried pipelines could be disruptive in terms of safety, life quality, and socioeconomic impacts. In this paper, we investigate the extensive list of available buried pipelines fragilities: we select a series of typical and interesting fragilities in terms of different ground motions, diverse pipeline and soil types typologies and nature (i.e. empirical, analytical); and then we compare the seismic damage results. The aim is to have a palpable overview of the variability of damage results while using different selected buried pipelines fragilities, various ground motion parameters and different hazard scenarios. To achieve this comparative study, the buried pipeline wastewater network of Byblos, Lebanon, is used as a case study. The methodology used to assess damage to the waste-water network encompasses hazard assessment, wastewater network inventory, wastewater damage functions, and model development. The Ergo platform was especially updated by implementing the list of selected fragilities to achieve the damage to wastewater comparison in this article. Results: and recommendations are offered; first for a more adequate usage of those fragilities; second, for improvement of existing and future developed buried pipelines fragility functions; and third, for the Byblos wastewater pipelines network, allowing the establishment of a resilient earthquake preparedness strategy and recovery plan for infrastructure network in Byblos.

Original languageEnglish (US)
Article number101775
JournalInternational Journal of Disaster Risk Reduction
StatePublished - Dec 2020


  • Earthquakes damage estimations
  • Fragility functions
  • Geotechnical effect
  • Wastewater buried pipelines

ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology
  • Building and Construction
  • Safety Research


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