Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions
Several risk factors threaten the safety of urban gas pipeline. How to effectively identify various risk factors affecting urban gas pipeline and put forward scientific risk assessment method is the focus in the field of urban safety research. To explore the uncertain factors in the process of gas p...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
2021-01-01
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| Series: | Tehnički Vjesnik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/380235 |
| _version_ | 1797206973562748928 |
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| author | Kai Sheng Xiaolin Lai Yong Chen Juncheng Jiang Lin Zhou* |
| author_facet | Kai Sheng Xiaolin Lai Yong Chen Juncheng Jiang Lin Zhou* |
| author_sort | Kai Sheng |
| collection | DOAJ |
| description | Several risk factors threaten the safety of urban gas pipeline. How to effectively identify various risk factors affecting urban gas pipeline and put forward scientific risk assessment method is the focus in the field of urban safety research. To explore the uncertain factors in the process of gas pipeline risk assessment, and propose a practical assessment method, a three-layer index system for the risk assessment of urban gas pipeline was established using unascertained measure theory, which included 5 first-class evaluation factors and 34 second-class evaluation indexes. Four unascertained measure models (linear, parabolic, exponential and sinusoidal) were constructed, and the unascertained measure values of each evaluation index under four unknown measure function models were calculated. The weight of evaluation factors was determined by Analytic Hierarchy Process (AHP), and the confidence criterion was used for discriminant evaluation. Results demonstrate that the risk assessment models constructed with different measurement functions can effectively reduce the uncertainty of urban gas pipeline risk assessment, but for the same object, the risk level of the linear measurement model in 4# pipeline is lower than other measurement functions, and the risk level of sinusoidal measurement model in 8# pipeline is higher than other measurement functions. Therefore, considering the evaluation results under different measure functions and focusing on monitoring objects with different results is necessary when using unascertained measure theory for risk assessment. The conclusions obtained from this study clarify the application conditions of unascertained measure theory in urban gas pipeline risk assessment, which helps to reduce the uncertainty in the assessment process and improve the accuracy of the assessment results. |
| first_indexed | 2024-04-24T09:15:31Z |
| format | Article |
| id | doaj.art-fc0a2e1b0b2049e099d7c871bea66d62 |
| institution | Directory Open Access Journal |
| issn | 1330-3651 1848-6339 |
| language | English |
| last_indexed | 2024-04-24T09:15:31Z |
| publishDate | 2021-01-01 |
| publisher | Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek |
| record_format | Article |
| series | Tehnički Vjesnik |
| spelling | doaj.art-fc0a2e1b0b2049e099d7c871bea66d622024-04-15T17:09:44ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392021-01-012851605161410.17559/TV-20201021110548Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure FunctionsKai Sheng0Xiaolin Lai1Yong Chen2Juncheng Jiang3Lin Zhou*41) Shenzhen Urban Public Safety and Technology Institute, No. 1, Fuhua 1st Road, Futian District, Shenzhen, Guangzhou, 518000, China 2) College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Nanjing 211816, Jiangsu, ChinaShenzhen Urban Public Safety and Technology Institute, No.1, Fuhua 1st Road, Futian District, Shenzhen, Guangzhou, 518000, ChinaShenzhen Urban Public Safety and Technology Institute, No.1, Fuhua 1st Road, Futian District, Shenzhen, Guangzhou, 518000, China1) College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Nanjing 211816, Jiangsu, China 2) School of Environmental and Safety Engineering, Changzhou University, No.1 Gehu Road, Changzhou, 213164, China1) College of Safety Science and Engineering, Nanjing Tech University, Puzhu South Road, Nanjing 211816, Jiangsu, China 2) School of Environmental and Safety Engineering, Changzhou University, No.1 Gehu Road, Changzhou, 213164, ChinaSeveral risk factors threaten the safety of urban gas pipeline. How to effectively identify various risk factors affecting urban gas pipeline and put forward scientific risk assessment method is the focus in the field of urban safety research. To explore the uncertain factors in the process of gas pipeline risk assessment, and propose a practical assessment method, a three-layer index system for the risk assessment of urban gas pipeline was established using unascertained measure theory, which included 5 first-class evaluation factors and 34 second-class evaluation indexes. Four unascertained measure models (linear, parabolic, exponential and sinusoidal) were constructed, and the unascertained measure values of each evaluation index under four unknown measure function models were calculated. The weight of evaluation factors was determined by Analytic Hierarchy Process (AHP), and the confidence criterion was used for discriminant evaluation. Results demonstrate that the risk assessment models constructed with different measurement functions can effectively reduce the uncertainty of urban gas pipeline risk assessment, but for the same object, the risk level of the linear measurement model in 4# pipeline is lower than other measurement functions, and the risk level of sinusoidal measurement model in 8# pipeline is higher than other measurement functions. Therefore, considering the evaluation results under different measure functions and focusing on monitoring objects with different results is necessary when using unascertained measure theory for risk assessment. The conclusions obtained from this study clarify the application conditions of unascertained measure theory in urban gas pipeline risk assessment, which helps to reduce the uncertainty in the assessment process and improve the accuracy of the assessment results.https://hrcak.srce.hr/file/380235credible degree recognition criteriarisk assessmentunascertained measureunknown measure functionurban gas pipeline |
| spellingShingle | Kai Sheng Xiaolin Lai Yong Chen Juncheng Jiang Lin Zhou* Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions Tehnički Vjesnik credible degree recognition criteria risk assessment unascertained measure unknown measure function urban gas pipeline |
| title | Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions |
| title_full | Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions |
| title_fullStr | Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions |
| title_full_unstemmed | Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions |
| title_short | Risk Assessment of Urban Gas Pipeline Based on Different Unknown Measure Functions |
| title_sort | risk assessment of urban gas pipeline based on different unknown measure functions |
| topic | credible degree recognition criteria risk assessment unascertained measure unknown measure function urban gas pipeline |
| url | https://hrcak.srce.hr/file/380235 |
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