Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mine
Abstract Non-technical summary To address the issues of declining groundwater levels and the degradation of soil ecological functions caused by open-pit coal mining in China. Based on theoretical analysis, laboratory experiments, on-site monitoring, mathematical modeling, and other means, the concep...
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Cambridge University Press
2024-01-01
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| Series: | Global Sustainability |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S2059479824000462/type/journal_article |
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| author | Quansheng Li Xiaobin Li |
| author_facet | Quansheng Li Xiaobin Li |
| author_sort | Quansheng Li |
| collection | DOAJ |
| description | Abstract
Non-technical summary
To address the issues of declining groundwater levels and the degradation of soil ecological functions caused by open-pit coal mining in China. Based on theoretical analysis, laboratory experiments, on-site monitoring, mathematical modeling, and other means, the concept of coal ecological protection mining of ‘damage reduction mining, three-dimensional protection, systematic restoration’ is proposed. The mining concept has achieved remarkable ecological restoration effects, leading the scientific and technological progress of safe, efficient and green mining in open-pit coal mines.
Technical summary
The mechanism of damage propagation among ‘rock-soil-water’ ecological elements in open-pit coal mining was revealed. Adopting comprehensive damage-reducing mining technology throughout the entire stripping process, mining and drainage, shengli open-pit coal mine has doubled its production capacity, and reduced the land excavation and damage by 60 mu/year, reduced the mining area by 1,128 mu, and raised the groundwater level by 2.6–6 m, and the ecological restoration of the drainage field was advanced by more than 1 year. Adopting the three-dimensional water storage technology involves underground reservoirs, aquifer reconstruction, and near-surface distributed water storage units, baorixile open-pit mine has built the world's first open-pit underground water reservoir, with a water storage capacity of 1.22 million m3, and the speed of groundwater level restoration has been increased by more than 70%. By adopting the systematic restoration technology of geomorphology-soil-vegetation in the discharge site, the soil water content in the demonstration area has been increased by 52%, the survival rate of plants has been increased by 34%, and the vegetation coverage has been increased by more than 40%.
Social media summary
Damage-reducing mining and systematic ecological restoration in open-pit coal mining are essential for the safe, efficient and green development of coal.
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| format | Article |
| id | doaj-art-b10edb20cb3d4fe79d45f2856c87a5f7 |
| institution | DOAJ |
| issn | 2059-4798 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Global Sustainability |
| spelling | doaj-art-b10edb20cb3d4fe79d45f2856c87a5f72025-08-20T02:51:28ZengCambridge University PressGlobal Sustainability2059-47982024-01-01710.1017/sus.2024.46Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mineQuansheng Li0https://orcid.org/0000-0002-8178-2491Xiaobin Li1State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, Beijing, China National Institute of Low Carbon and Clean Energy, Beijing, China National Energy Investment Group Co., Beijing, ChinaState Key Laboratory of Water Resource Protection and Utilization in Coal Mining, Beijing, China National Institute of Low Carbon and Clean Energy, Beijing, ChinaAbstract Non-technical summary To address the issues of declining groundwater levels and the degradation of soil ecological functions caused by open-pit coal mining in China. Based on theoretical analysis, laboratory experiments, on-site monitoring, mathematical modeling, and other means, the concept of coal ecological protection mining of ‘damage reduction mining, three-dimensional protection, systematic restoration’ is proposed. The mining concept has achieved remarkable ecological restoration effects, leading the scientific and technological progress of safe, efficient and green mining in open-pit coal mines. Technical summary The mechanism of damage propagation among ‘rock-soil-water’ ecological elements in open-pit coal mining was revealed. Adopting comprehensive damage-reducing mining technology throughout the entire stripping process, mining and drainage, shengli open-pit coal mine has doubled its production capacity, and reduced the land excavation and damage by 60 mu/year, reduced the mining area by 1,128 mu, and raised the groundwater level by 2.6–6 m, and the ecological restoration of the drainage field was advanced by more than 1 year. Adopting the three-dimensional water storage technology involves underground reservoirs, aquifer reconstruction, and near-surface distributed water storage units, baorixile open-pit mine has built the world's first open-pit underground water reservoir, with a water storage capacity of 1.22 million m3, and the speed of groundwater level restoration has been increased by more than 70%. By adopting the systematic restoration technology of geomorphology-soil-vegetation in the discharge site, the soil water content in the demonstration area has been increased by 52%, the survival rate of plants has been increased by 34%, and the vegetation coverage has been increased by more than 40%. Social media summary Damage-reducing mining and systematic ecological restoration in open-pit coal mining are essential for the safe, efficient and green development of coal. https://www.cambridge.org/core/product/identifier/S2059479824000462/type/journal_articleopen-pit coal minedamage reduction miningwater resource protectionsystematic rehabilitationengineering practice |
| spellingShingle | Quansheng Li Xiaobin Li Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mine Global Sustainability open-pit coal mine damage reduction mining water resource protection systematic rehabilitation engineering practice |
| title | Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mine |
| title_full | Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mine |
| title_fullStr | Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mine |
| title_full_unstemmed | Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mine |
| title_short | Technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open-pit coal mine |
| title_sort | technological innovation and engineering practice of damage reduction mining and ecosystem restoration in open pit coal mine |
| topic | open-pit coal mine damage reduction mining water resource protection systematic rehabilitation engineering practice |
| url | https://www.cambridge.org/core/product/identifier/S2059479824000462/type/journal_article |
| work_keys_str_mv | AT quanshengli technologicalinnovationandengineeringpracticeofdamagereductionminingandecosystemrestorationinopenpitcoalmine AT xiaobinli technologicalinnovationandengineeringpracticeofdamagereductionminingandecosystemrestorationinopenpitcoalmine |