Estimating water and wastewater pipe failure consequences and the most detrimental failure modes

Tuija Laakso, Suvi Ahopelto, Tiia Lampola, Teemu Kokkonen, Riku Vahala

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)
70 Downloads (Pure)

Abstract

Failures of water and wastewater networks can lead to severe consequences for human, natural and built environment. This paper presents how data on networks and their immediate environment together with graph analysis can be used to estimate the severity of pipe failure consequences. A case study concerning a large water and wastewater utility revealed that ca. 14% of the water distribution pipes and ca. 25% of the sewers had potentially severe failure consequences with regard to at least one factor considered. The most detrimental failure modes connected to these pipes were identified. An assessment of the most important information needs revealed that a number of crucial source data sets were missing. The results can be used to support asset management decisions aiming at risk alleviation, e.g. when estimating the resources needed for network maintenance, condition inspections or renovations and when planning excavation works.
Original languageEnglish
Pages (from-to)901-909
JournalWater Science and Technology: Water Supply
Volume18
Issue number3
Early online date14 Aug 2017
DOIs
Publication statusPublished - Jun 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • Failure consequences
  • Failure modes
  • Wastewater networks
  • Water

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