PERFORMANCE EVALUATION OF EMERGENCY SHUTOFF SYSTEM OF CITY GAS SUPPLY SYSTEM IN EARTHQUAKE DISASTER
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- MORIYAMA Tatsuya
- 岐阜大学大学院 工学研究科博士前期課程社会基盤工学専攻
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- NOJIMA Nobuoto
- 岐阜大学 工学部社会基盤工学科
Bibliographic Information
- Other Title
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- 都市ガス供給システムにおける地震時供給停止判断の性能評価
Abstract
City gas shutoff system in earthquake disaster can be modeled as a k-out-of-n system activating shutoff when observing SI values exceeding a prescribed criterion. In this study, performance evaluation is carried out in order to better manage trade-off between service continuity and shutoff. Monte Carlo simulations are conducted to generate a set of SI values, resulting shutoff status in accordance with the criterion and corresponding damage ratios using fragility function and pipeline inventory. The generated dataset is analyzed using contingency table and associated indices such as true positive rate, true negative rage, positive predictive value, negative predictive value and ROC. Practical examples suggest that shutoff criterion can be appropriately determined by considering level of earthquake-resistance of low-pressure pipe.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
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Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 73 (4), I_187-I_196, 2017
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390001205350902912
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- NII Article ID
- 130006088707
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- ISSN
- 21854653
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed