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Predicting Individual Hydraulic Performance of Sewer Pipes in Context of Climate Change.


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El-Housni, Hind; Duchesne, Sophie ORCID logoORCID: https://orcid.org/0000-0002-5619-0849 et Mailhot, Alain ORCID logoORCID: https://orcid.org/0000-0002-5479-1421 (2019). Predicting Individual Hydraulic Performance of Sewer Pipes in Context of Climate Change. Journal of Water Resources Planning and Management , vol. 145 , nº 11. 04019051. DOI: 10.1061/(ASCE)WR.1943-5452.0001127.

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A new method to identify pipes with insufficient hydraulic capacity is proposed. This method can be applied to assess the future evolution of network performance under climate change (CC). It is based on hydrologic/hydraulic simulations using the Storm Water Management Model (SWMM) and single observed rainfall events. The evolution of the hydraulic performance with time is simulated by increasing the intensity of these rainfall events by a factor depending on the CC predictions for the study area. The proposed method is applied to two Canadian separated and combined sewer networks. The method identified the constraining pipe sections that could cause hydraulic dysfunctions in the networks in both current and future climates. For the two networks, the number of constraining pipes depends on rain events and is anticipated to increase in the future climate. The proposed method can be applied to various types of networks to assess the network performance and project the evolution of the hydraulic performance of individual pipes over time, making it a useful tool for the planning of drainage network renewal under CC.

Type de document: Article
Mots-clés libres: constraining pipes; renewal planning; sewer network; Storm Water Management Model (SWMM); urban drainage
Centre: Centre Eau Terre Environnement
Date de dépôt: 04 déc. 2019 15:49
Dernière modification: 15 févr. 2022 19:29
URI: https://espace.inrs.ca/id/eprint/9591

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