Mine safety assessment based on basic event importance: grey relational analysis and bow tie model
Safety assessments are a crucial first step in preventing coal and gas outburst accidents. The main purpose of this study was to create a new accident prevention technique using a novel safety assessment method based on fault tree basic event importance, grey relational analysis and the bow tie mode...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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The Royal Society
2018-01-01
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| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180397 |
| _version_ | 1828823244825690112 |
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| author | Qingwei Xu Kaili Xu Li Li Xiwen Yao |
| author_facet | Qingwei Xu Kaili Xu Li Li Xiwen Yao |
| author_sort | Qingwei Xu |
| collection | DOAJ |
| description | Safety assessments are a crucial first step in preventing coal and gas outburst accidents. The main purpose of this study was to create a new accident prevention technique using a novel safety assessment method based on fault tree basic event importance, grey relational analysis and the bow tie model. The innovation of the proposed method lies in generating the composite importance of a basic event from the fundamental importance via grey relational analysis; bow tie analysis serves to reveal the most critical basic event. First, the minimal cut sets and minimal path sets of a coal and gas outburst accident are determined by fault tree analysis. The role of minimal cut and path sets is determined and the coal and gas outburst occurrence frequency is calculated accordingly. Second, the structure, probability, critical and Fussell–Vesely importance ranked basic events differently due to different aspects of the basic events as investigated. We establish a composite importance to represent single basic events and achieved new ranking results by grey relational analysis. Third, the critical basic event low permeability coefficient is analysed via bow tie model and safety measures are defined which prevent the dangerous consequences of a low permeability coefficient. An actual coal and gas outburst accident is used as a case study to test the feasibility and effectiveness of the proposed method. |
| first_indexed | 2024-12-12T13:31:21Z |
| format | Article |
| id | doaj.art-e10c211e12c84ae9ad11b6f8e574aa70 |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-12T13:31:21Z |
| publishDate | 2018-01-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-e10c211e12c84ae9ad11b6f8e574aa702022-12-22T00:23:04ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-015810.1098/rsos.180397180397Mine safety assessment based on basic event importance: grey relational analysis and bow tie modelQingwei XuKaili XuLi LiXiwen YaoSafety assessments are a crucial first step in preventing coal and gas outburst accidents. The main purpose of this study was to create a new accident prevention technique using a novel safety assessment method based on fault tree basic event importance, grey relational analysis and the bow tie model. The innovation of the proposed method lies in generating the composite importance of a basic event from the fundamental importance via grey relational analysis; bow tie analysis serves to reveal the most critical basic event. First, the minimal cut sets and minimal path sets of a coal and gas outburst accident are determined by fault tree analysis. The role of minimal cut and path sets is determined and the coal and gas outburst occurrence frequency is calculated accordingly. Second, the structure, probability, critical and Fussell–Vesely importance ranked basic events differently due to different aspects of the basic events as investigated. We establish a composite importance to represent single basic events and achieved new ranking results by grey relational analysis. Third, the critical basic event low permeability coefficient is analysed via bow tie model and safety measures are defined which prevent the dangerous consequences of a low permeability coefficient. An actual coal and gas outburst accident is used as a case study to test the feasibility and effectiveness of the proposed method.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180397safety assessmentcoal and gas outburstfault tree analysisimportancegrey relational analysisbow tie model |
| spellingShingle | Qingwei Xu Kaili Xu Li Li Xiwen Yao Mine safety assessment based on basic event importance: grey relational analysis and bow tie model Royal Society Open Science safety assessment coal and gas outburst fault tree analysis importance grey relational analysis bow tie model |
| title | Mine safety assessment based on basic event importance: grey relational analysis and bow tie model |
| title_full | Mine safety assessment based on basic event importance: grey relational analysis and bow tie model |
| title_fullStr | Mine safety assessment based on basic event importance: grey relational analysis and bow tie model |
| title_full_unstemmed | Mine safety assessment based on basic event importance: grey relational analysis and bow tie model |
| title_short | Mine safety assessment based on basic event importance: grey relational analysis and bow tie model |
| title_sort | mine safety assessment based on basic event importance grey relational analysis and bow tie model |
| topic | safety assessment coal and gas outburst fault tree analysis importance grey relational analysis bow tie model |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180397 |
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