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Vulnerability modeling of the gas line network after the earthquake phenomenon in Tabriz city
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Ali Asghar Torahi *1   , Marjan Firouzinejad2 |
1- Kharazmi University
2- Tehran University |
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Abstract: (14 Views) |
Due to its seismic location and its location on the earthquake belt, Iran is very vulnerable to earthquakes. As one of the vital arteries, the pipeline system plays a key role in reducing or increasing damage after an earthquake, including explosions and fires. The aim of this study is to investigate the seismicity risk of Tabriz city based on different input layers, using fuzzy logic and seismic risk zoning. According to the underground formations of the city, the ground resistance was investigated in different parts of different dimensions of gas pipelines and construction with regard to high-risk areas in seismic hazard zoning. In the following, by extracting different risk layers in the city and combining the layers, with four fuzzy operators, the risk map of Tabriz gas pipelines was extracted after the earthquake and in addition to estimating the vulnerability of gas pipelines in different areas of the city. These four operators were compared. In the end, the gamma operator was selected as the best operator due to its greater compliance with the conditions of gas pipelines and population and seismic peak points. The results of this research show that the central areas of Tabriz city are more vulnerable than other places and gas pipelines in this area should be given more attention in terms of safety and retrofitting.
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Article number: 3 |
| Keywords: Gas pipelines, vulnerability, zoning, fuzzy logic, Tabriz. |
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Full-Text [PDF 1216 kb]
(16 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2023/06/14 | Accepted: 2026/01/13 | Published: 2026/01/13
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