Assessment on seismic resilience of water supply network based on projection pursuit cluster

doi:10.16265/j.cnki.issn1003-3033.2020.06.022

Abstract

Abstract: In order to ensure safe operation of urban water supply network at different levels, based on resilience analysis and seismic damage mechanism of network, a seismic safety resilience evaluation index system of the network was established which considered pipelines' physical properties, external environment and hydraulic function in pipes. Then, projection pursuit method was introduced to project evaluation index linearly, and a projection pursuit cluster model for assessment was established to analyze seismic safety resilience level and to obtain resilience grade and order of each pipes. Finally, this model was applied to evaluate a water supply network, and its assessment results were compared with those obtained by dynamic classification method and pedigree clustering method. The results show that the proposed evaluation model based on projection pursuit cluster can successfully grade and rank seismic safety resilience of water supply network and comprehensively reflect influence of different elements including pipes' material and connection type.

Key words: projection pursuit cluster, water supply network, earthquake resilience, hydraulic analysis, evaluation index system, hierarchical guarantee

CLC Number:

X915.5

LI Yanfeng, YIN Jiaxiao, LIU Chaofeng, WANG Wei, YU Xiaochen, LI Zipeng. Assessment on seismic resilience of water supply network based on projection pursuit cluster[J]. China Safety Science Journal, 2020, 30(6): 152-157.

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