Study on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel
Abstract Currently, perfusing deceleration aggregate is the most effective way to create water-blocking sections for controlling coal mine water inrush disasters. Clarifying the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channels is the key t...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-95575-w |
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| author | Jiahao Wen Shuancheng Gu Peili Su Jinhua Li |
| author_facet | Jiahao Wen Shuancheng Gu Peili Su Jinhua Li |
| author_sort | Jiahao Wen |
| collection | DOAJ |
| description | Abstract Currently, perfusing deceleration aggregate is the most effective way to create water-blocking sections for controlling coal mine water inrush disasters. Clarifying the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channels is the key to quantitatively determining the deposition and migration distance of aggregate after entering the water inrush channel from the perfusion hole. Based on fluid mechanics, slurry pipeline transportation theory and sediment dynamics, this paper categories the entire migration process of aggregate entering the water inrush channel from the perfusion hole into three motion stages: free fall, curved-throwing, and sliding. The motion and force characteristics of each stage are analyzed, and a theoretical model for single-aggregate sedimentary migration is established. The CFD-DEM method is used to establish a transient bidirectional coupling numerical calculation model of aggregate-water to verify the theoretical model (overall error not exceeding 10%). Finally, based on this research, reasonable suggestions are proposed for the actual engineering of plugging by perfusing deceleration aggregate. |
| format | Article |
| id | doaj-art-294dc3c4c97f4528ae4a9004bc4de276 |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-294dc3c4c97f4528ae4a9004bc4de2762025-08-20T01:54:30ZengNature PortfolioScientific Reports2045-23222025-04-0115111510.1038/s41598-025-95575-wStudy on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channelJiahao Wen0Shuancheng Gu1Peili Su2Jinhua Li3College of Architecture and Civil Engineering, Xi’an University of Science and TechnologyCollege of Architecture and Civil Engineering, Xi’an University of Science and TechnologyCollege of Architecture and Civil Engineering, Xi’an University of Science and TechnologyCollege of Architecture and Civil Engineering, Xi’an University of Science and TechnologyAbstract Currently, perfusing deceleration aggregate is the most effective way to create water-blocking sections for controlling coal mine water inrush disasters. Clarifying the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channels is the key to quantitatively determining the deposition and migration distance of aggregate after entering the water inrush channel from the perfusion hole. Based on fluid mechanics, slurry pipeline transportation theory and sediment dynamics, this paper categories the entire migration process of aggregate entering the water inrush channel from the perfusion hole into three motion stages: free fall, curved-throwing, and sliding. The motion and force characteristics of each stage are analyzed, and a theoretical model for single-aggregate sedimentary migration is established. The CFD-DEM method is used to establish a transient bidirectional coupling numerical calculation model of aggregate-water to verify the theoretical model (overall error not exceeding 10%). Finally, based on this research, reasonable suggestions are proposed for the actual engineering of plugging by perfusing deceleration aggregate.https://doi.org/10.1038/s41598-025-95575-wDeceleration aggregateWaterTwo-phase couplingMigration mechanism |
| spellingShingle | Jiahao Wen Shuancheng Gu Peili Su Jinhua Li Study on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel Scientific Reports Deceleration aggregate Water Two-phase coupling Migration mechanism |
| title | Study on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel |
| title_full | Study on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel |
| title_fullStr | Study on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel |
| title_full_unstemmed | Study on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel |
| title_short | Study on the two-phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel |
| title_sort | study on the two phase coupling migration mechanism of deceleration aggregate and water in coal mine water inrush channel |
| topic | Deceleration aggregate Water Two-phase coupling Migration mechanism |
| url | https://doi.org/10.1038/s41598-025-95575-w |
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