Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinder
The interval time between successive filling processes in a stope is a critical parameter for metal mines. It is imperative to accurately determine this interval time. The relationship curves between curing time and heavy hammer settlement height under various types of cementing materials and slurry...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024003827 |
| _version_ | 1827215410100961280 |
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| author | Yong Wang Jian Wang Qing Na Lianfu Zhang |
| author_facet | Yong Wang Jian Wang Qing Na Lianfu Zhang |
| author_sort | Yong Wang |
| collection | DOAJ |
| description | The interval time between successive filling processes in a stope is a critical parameter for metal mines. It is imperative to accurately determine this interval time. The relationship curves between curing time and heavy hammer settlement height under various types of cementing materials and slurry concentration conditions were obtained through the self-developed heavy hammer experiment. The mathematical model for the relationship between curing time and heavy hammer settlement height was fitted and regressed, with further analysis of the impact of slurry concentration and cementing material type on initial setting time. The results demonstrate an exponential relationship between curing time and heavy hammer settlement height, wherein the heavy hammer settlement height gradually decreases with increasing curing time. The initial setting time is significantly influenced by both the concentration of slurry and the type of cementing materials. Generally, with the same cementing material conditions, higher backfill concentrations result in shorter initial setting times. When the slurry concentration is 68 %, the initial setting time of A-type cementing materials occurs approximately 36.8 % earlier compared to that of C-type cementing materials, highlighting the crucial significance of selecting appropriate cementing materials for mine filling. The implementation of a consecutive filling strategy based on heavy hammer experimentation holds significant implications for enhancing the efficiency of mine filling, as exemplified by an iron mine in China. |
| first_indexed | 2024-04-24T09:44:59Z |
| format | Article |
| id | doaj.art-f784d5fc092c41de85033762676ff647 |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2025-03-21T14:46:47Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-f784d5fc092c41de85033762676ff6472024-06-21T08:54:50ZengElsevierResults in Engineering2590-12302024-06-0122102128Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinderYong Wang0Jian Wang1Qing Na2Lianfu Zhang3Key Laboratory of Ministry of Education of China for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China; School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaKey Laboratory of Ministry of Education of China for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China; School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaKey Laboratory of Ministry of Education of China for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China; School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaKey Laboratory of Ministry of Education of China for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China; School of Mining Engineering, Anhui University of Science and Technology, Huainan, 232001, China; Corresponding author. Key Laboratory of Ministry of Education of China for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, 100083, China.The interval time between successive filling processes in a stope is a critical parameter for metal mines. It is imperative to accurately determine this interval time. The relationship curves between curing time and heavy hammer settlement height under various types of cementing materials and slurry concentration conditions were obtained through the self-developed heavy hammer experiment. The mathematical model for the relationship between curing time and heavy hammer settlement height was fitted and regressed, with further analysis of the impact of slurry concentration and cementing material type on initial setting time. The results demonstrate an exponential relationship between curing time and heavy hammer settlement height, wherein the heavy hammer settlement height gradually decreases with increasing curing time. The initial setting time is significantly influenced by both the concentration of slurry and the type of cementing materials. Generally, with the same cementing material conditions, higher backfill concentrations result in shorter initial setting times. When the slurry concentration is 68 %, the initial setting time of A-type cementing materials occurs approximately 36.8 % earlier compared to that of C-type cementing materials, highlighting the crucial significance of selecting appropriate cementing materials for mine filling. The implementation of a consecutive filling strategy based on heavy hammer experimentation holds significant implications for enhancing the efficiency of mine filling, as exemplified by an iron mine in China.http://www.sciencedirect.com/science/article/pii/S2590123024003827Metal mine fillingMultiple fillingConsecutive fillingCuring timeSlurry concentration |
| spellingShingle | Yong Wang Jian Wang Qing Na Lianfu Zhang Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinder Results in Engineering Metal mine filling Multiple filling Consecutive filling Curing time Slurry concentration |
| title | Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinder |
| title_full | Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinder |
| title_fullStr | Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinder |
| title_full_unstemmed | Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinder |
| title_short | Study on the setting time and real-stope continuous filling strategy for metal mine backfill via a self-made simple iron cylinder |
| title_sort | study on the setting time and real stope continuous filling strategy for metal mine backfill via a self made simple iron cylinder |
| topic | Metal mine filling Multiple filling Consecutive filling Curing time Slurry concentration |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024003827 |
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