Performance of the L'Aquila (central Italy) gas distribution network in the 2009 (Mw 6.3) earthquake (original) (raw)
Despite the seismic vulnerability of gas systems and the significance of the direct and indirect consequences that loss functionality might have on large communities, the analy- sis of the earthquake performance and of post-earthquake management for this kind of dis- tribution networks appears under-represented in the international literature, with respect to other lifeline systems. To contribute on this matter, the study presented comprises an investi- gation of the impact of L'Aquila 2009 earthquake (Mw 6.3) on the performance of the local medium- and low-pressure gas distribution networks. The assessment of the physical impact of the earthquake to the buried components of network, namely pipes, valves, and demand nodes, was carried out when processing post-earthquake repair activity reports. Repair data, along with geometrical and constructive features, were collected in a geographic informa- tion system linked to the digitized maps of the network, and compared with the inter...
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