Open pit limit optimization considering the pumped storage benefit after mine closure: a case study
Abstract Repurposing a closed mine as lower reservoir is a cost-effective way for the construction of pumped storage hydropower (PSH) plant. This method can eliminate the expenses of mine reclamation, reservoir construction, and land acquisition, resulting in significant cost savings and benefits fo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2024-02-01
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| Series: | Geomechanics and Geophysics for Geo-Energy and Geo-Resources |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40948-024-00759-9 |
| _version_ | 1797272820844068864 |
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| author | Feiyue Liu Ke Yang Tianhong Yang Wenxue Deng Hua Li Lingyue Yang |
| author_facet | Feiyue Liu Ke Yang Tianhong Yang Wenxue Deng Hua Li Lingyue Yang |
| author_sort | Feiyue Liu |
| collection | DOAJ |
| description | Abstract Repurposing a closed mine as lower reservoir is a cost-effective way for the construction of pumped storage hydropower (PSH) plant. This method can eliminate the expenses of mine reclamation, reservoir construction, and land acquisition, resulting in significant cost savings and benefits for the PSH project, known as the PSH benefit. The construction of PSH plants within a closed mine is divided into surface mode and semi-underground mode in this paper. Through a general comparison of two in-situ cases, the finding highlight that the surface mode can achieve a larger potential installed capacity and lower construction cost. Furthermore, the PSH benefit is quantified and internalized as an economic parameter in the ultimate pit limit (UPL) optimization by allocating it into unit ore. Taken an undisclosed open-pit iron mine as example, the UPL is optimized by considering the PSH benefit. The internalized PSH benefit is calculated to be 6.59 CN¥/t when the installed capacity is 2000 MW, and ore amount within the optimized UPL is increased by 1.4%. The results indicated that the PSH benefit does influence the shape and size of UPL, but not significantly. Besides, converting several bottoms in a single open-pit into lower and upper reservoirs presents more challenges for UPL optimization, which further explorations is needed. |
| first_indexed | 2024-03-07T14:35:06Z |
| format | Article |
| id | doaj.art-5b9e0a2fd8424593a6b483a3b3f13ded |
| institution | Directory Open Access Journal |
| issn | 2363-8419 2363-8427 |
| language | English |
| last_indexed | 2024-03-07T14:35:06Z |
| publishDate | 2024-02-01 |
| publisher | Springer |
| record_format | Article |
| series | Geomechanics and Geophysics for Geo-Energy and Geo-Resources |
| spelling | doaj.art-5b9e0a2fd8424593a6b483a3b3f13ded2024-03-05T20:42:10ZengSpringerGeomechanics and Geophysics for Geo-Energy and Geo-Resources2363-84192363-84272024-02-0110111410.1007/s40948-024-00759-9Open pit limit optimization considering the pumped storage benefit after mine closure: a case studyFeiyue Liu0Ke Yang1Tianhong Yang2Wenxue Deng3Hua Li4Lingyue Yang5Anhui Engineering Research Center of Exploitation and Utilization of Closed/Abandoned Mine Resources, School of Mining Engineering, Anhui University of Science and TechnologyInstitute of Energy, Hefei Comprehensive National Science CenterCenter for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityCenter for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityCenter for Rock Instability and Seismicity Research, School of Resources and Civil Engineering, Northeastern UniversityAnhui Engineering Research Center of Exploitation and Utilization of Closed/Abandoned Mine Resources, School of Mining Engineering, Anhui University of Science and TechnologyAbstract Repurposing a closed mine as lower reservoir is a cost-effective way for the construction of pumped storage hydropower (PSH) plant. This method can eliminate the expenses of mine reclamation, reservoir construction, and land acquisition, resulting in significant cost savings and benefits for the PSH project, known as the PSH benefit. The construction of PSH plants within a closed mine is divided into surface mode and semi-underground mode in this paper. Through a general comparison of two in-situ cases, the finding highlight that the surface mode can achieve a larger potential installed capacity and lower construction cost. Furthermore, the PSH benefit is quantified and internalized as an economic parameter in the ultimate pit limit (UPL) optimization by allocating it into unit ore. Taken an undisclosed open-pit iron mine as example, the UPL is optimized by considering the PSH benefit. The internalized PSH benefit is calculated to be 6.59 CN¥/t when the installed capacity is 2000 MW, and ore amount within the optimized UPL is increased by 1.4%. The results indicated that the PSH benefit does influence the shape and size of UPL, but not significantly. Besides, converting several bottoms in a single open-pit into lower and upper reservoirs presents more challenges for UPL optimization, which further explorations is needed.https://doi.org/10.1007/s40948-024-00759-9Ultimate pit limit optimizationClosed open-pit minePumped storage hydropowerReclamation costReservoir construction |
| spellingShingle | Feiyue Liu Ke Yang Tianhong Yang Wenxue Deng Hua Li Lingyue Yang Open pit limit optimization considering the pumped storage benefit after mine closure: a case study Geomechanics and Geophysics for Geo-Energy and Geo-Resources Ultimate pit limit optimization Closed open-pit mine Pumped storage hydropower Reclamation cost Reservoir construction |
| title | Open pit limit optimization considering the pumped storage benefit after mine closure: a case study |
| title_full | Open pit limit optimization considering the pumped storage benefit after mine closure: a case study |
| title_fullStr | Open pit limit optimization considering the pumped storage benefit after mine closure: a case study |
| title_full_unstemmed | Open pit limit optimization considering the pumped storage benefit after mine closure: a case study |
| title_short | Open pit limit optimization considering the pumped storage benefit after mine closure: a case study |
| title_sort | open pit limit optimization considering the pumped storage benefit after mine closure a case study |
| topic | Ultimate pit limit optimization Closed open-pit mine Pumped storage hydropower Reclamation cost Reservoir construction |
| url | https://doi.org/10.1007/s40948-024-00759-9 |
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