Computational fluid dynamics simulations to optimize the filling of an underground mine cavity with fly ash
Subsidence caused by the underground spaces of abandoned mines is a potential danger to life and property. This study focuses on optimizing the filling of these cavities at a site in Korea to prevent subsidence and to reuse abandoned mine. Fly ash produced from thermoelectric power plants might be p...
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| Published in | Geosystem engineering Vol. 20; no. 5; pp. 237 - 250 |
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| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Taylor & Francis
03.09.2017
한국자원공학회 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1226-9328 2166-3394 |
| DOI | 10.1080/12269328.2016.1262290 |
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| Abstract | Subsidence caused by the underground spaces of abandoned mines is a potential danger to life and property. This study focuses on optimizing the filling of these cavities at a site in Korea to prevent subsidence and to reuse abandoned mine. Fly ash produced from thermoelectric power plants might be profitably used to fill the abandoned workings. Computational fluid dynamics (CFD) is used here to simulate fly ash injection into mine cavities by a volume-of-fluid method. The numerical experiments are run after the establishment of three input parameters, which are used to optimize two output parameters. This series of CFD simulations investigates the effects of filling with respect to the operation factors of the filling method. The filling operation is then optimized with regard to efficiency and equipment cost. A low injection point with drilling connection of vertical shafts gives the most efficient filling of underground mine cavities. |
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| AbstractList | Subsidence caused by the underground spaces of abandoned mines is a potential danger to life and property. This study focuses on optimizing the filling of these cavities at a site in Korea to prevent subsidence and to reuse abandoned mine. Fly ash produced from thermoelectric power plants might be profitably used to fill the abandoned workings. Computational fluid dynamics (CFD) is used here to simulate fly ash injection into mine cavities by a volume-of-fluid method. The numerical experiments are run after the establishment of three input parameters, which are used to optimize two output parameters. This series of CFD simulations investigates the effects of filling with respect to the operation factors of the filling method. The filling operation is then optimized with regard to efficiency and equipment cost. A low injection point with drilling connection of vertical shafts gives the most efficient filling of underground mine cavities. Subsidence caused by the underground spaces of abandoned mines is a potential danger to life and property. This study focuses on optimizing the filling of these cavities at a site in Korea to prevent subsidence and to reuse abandoned mine. Fly ash produced from thermoelectric power plants might be profitably used to fill the abandoned workings. Computational fluid dynamics (CFD) is used here to simulate fly ash injection into mine cavities by a volume-of-fluid method. The numerical experiments are run after the establishment of three input parameters, which are used to optimize two output parameters. This series of CFD simulations investigates the effects of filling with respect to the operation factors of the filling method. The filling operation is then optimized with regard to efficiency and equipment cost. A low injection point with drilling connection of vertical shafts gives the most efficient filling of underground mine cavities. KCI Citation Count: 0 |
| Author | Lee, Sang-Eun Kang, Hoon Park, Jin-Young Song, Changheon Kim, Daeji Cho, Min-Gi Cho, Jung-Woo |
| Author_xml | – sequence: 1 givenname: Changheon surname: Song fullname: Song, Changheon organization: Department of Mechanical Engineering, Hanyang University – sequence: 2 givenname: Daeji surname: Kim fullname: Kim, Daeji organization: Daegyeong Regional Division, Korea Institute of Industrial Technology – sequence: 3 givenname: Hoon surname: Kang fullname: Kang, Hoon organization: Daegyeong Regional Division, Korea Institute of Industrial Technology – sequence: 4 givenname: Min-Gi surname: Cho fullname: Cho, Min-Gi organization: Daegyeong Regional Division, Korea Institute of Industrial Technology – sequence: 5 givenname: Jin-Young surname: Park fullname: Park, Jin-Young organization: Daegyeong Regional Division, Korea Institute of Industrial Technology – sequence: 6 givenname: Jung-Woo surname: Cho fullname: Cho, Jung-Woo email: chojw1665@kitech.re.kr organization: Daegyeong Regional Division, Korea Institute of Industrial Technology – sequence: 7 givenname: Sang-Eun surname: Lee fullname: Lee, Sang-Eun organization: Department of Energy & Mineral Resources Engineering, Kangwon National University |
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| SubjectTerms | Coal ash disposal computational fluid dynamics (CFD) filling cavity operation optimization underground mine 자원공학 |
| Title | Computational fluid dynamics simulations to optimize the filling of an underground mine cavity with fly ash |
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