Identification of Critical Pipes of Water Distribution Networks Using a Hydraulically Informed Graph-Based Approach
Publication: World Environmental and Water Resources Congress 2022
ABSTRACT
Water distribution networks (WDNs) are comprised of various components interacting in a complex way. Minor disturbances in them, like a pipe failure, could trigger cascading events causing crucial impacts on the well-being of residents. Therefore, the resilience of WDNs under different failure modes needs to be proactively investigated to ensure that they can cope with disruptive events. This paper introduces a hydraulically informed graph-based approach (HGA) to assess the resilience of WDNs in case of pipe failures. The aim is to rank critical pipes without conducting any hydraulic simulations, solely utilizing topological features and mimicking hydraulic behavior. The suggested method focuses on resistance, capacity, and connectivity of pipes. The results of applying HGA to two networks show that more than 95% of critical pipes identified by it are all top-ranked in a hydraulic-based model. The proposed approach can be upgraded to combine multiple and simultaneous failures, which cannot be investigated in acceptable execution time with hydraulic models.
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World Environmental and Water Resources Congress 2022
Pages: 1041 - 1053
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Published online: Jun 2, 2022
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