Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone mine
Deep-hole bench blasting is the primary method for aggregate extraction in mines. However, factors such as complex geological conditions and suboptimal blasting parameters often result in uneven rock fragmentation and high fines content. This not only increases the cost and energy consumption of sub...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-12-01
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| Series: | Frontiers in Materials |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2023.1330354/full |
| _version_ | 1827584451360587776 |
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| author | Pengfei Gao Cheng Pan Cheng Pan Qi Zong Chunliang Dong |
| author_facet | Pengfei Gao Cheng Pan Cheng Pan Qi Zong Chunliang Dong |
| author_sort | Pengfei Gao |
| collection | DOAJ |
| description | Deep-hole bench blasting is the primary method for aggregate extraction in mines. However, factors such as complex geological conditions and suboptimal blasting parameters often result in uneven rock fragmentation and high fines content. This not only increases the cost and energy consumption of subsequent aggregate processing but also has adverse environmental implications. In this study, based on the Changjiu Shenshan limestone aggregate mining project in China, large-scale blasting experiments were conducted to investigate the influence of rock properties and blasting parameters on the size distribution of post-blast fragments and fines content. The results of the blasting experiments indicate that by controlling the size of the crushing zone and adjusting explosive performance, it is possible to significantly reduce fines content while improving mining efficiency. Recommended values for drilling and blasting parameters have been proposed based on geological conditions to more effectively control the generation of fines. The results highlight the importance of optimizing blasting parameters and charge structure for large-scale mining operations to achieve uniform rock fragmentation and low fines content. By adopting explosive performance adjustment methods based on reasonable control of the crushing zone, improving explosive performance can improve the economic benefits of mining operations, reduce energy consumption, and contribute to environmental protection. |
| first_indexed | 2024-03-08T23:30:31Z |
| format | Article |
| id | doaj.art-2f09d0c4123d48899d0204200c25a115 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-03-08T23:30:31Z |
| publishDate | 2023-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-2f09d0c4123d48899d0204200c25a1152023-12-14T13:27:22ZengFrontiers Media S.A.Frontiers in Materials2296-80162023-12-011010.3389/fmats.2023.13303541330354Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone minePengfei Gao0Cheng Pan1Cheng Pan2Qi Zong3Chunliang Dong4School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, ChinaSchool of Civil Engineering, Southeast University, Nanjing, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, ChinaSchool of Mechanics and Optoelectronic Physics, Anhui University of Science and Technology, Huainan, ChinaDeep-hole bench blasting is the primary method for aggregate extraction in mines. However, factors such as complex geological conditions and suboptimal blasting parameters often result in uneven rock fragmentation and high fines content. This not only increases the cost and energy consumption of subsequent aggregate processing but also has adverse environmental implications. In this study, based on the Changjiu Shenshan limestone aggregate mining project in China, large-scale blasting experiments were conducted to investigate the influence of rock properties and blasting parameters on the size distribution of post-blast fragments and fines content. The results of the blasting experiments indicate that by controlling the size of the crushing zone and adjusting explosive performance, it is possible to significantly reduce fines content while improving mining efficiency. Recommended values for drilling and blasting parameters have been proposed based on geological conditions to more effectively control the generation of fines. The results highlight the importance of optimizing blasting parameters and charge structure for large-scale mining operations to achieve uniform rock fragmentation and low fines content. By adopting explosive performance adjustment methods based on reasonable control of the crushing zone, improving explosive performance can improve the economic benefits of mining operations, reduce energy consumption, and contribute to environmental protection.https://www.frontiersin.org/articles/10.3389/fmats.2023.1330354/fulldeep-hole bench blastingaggregate extractionfragmentation size distributionfines contentexplosive performance |
| spellingShingle | Pengfei Gao Cheng Pan Cheng Pan Qi Zong Chunliang Dong Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone mine Frontiers in Materials deep-hole bench blasting aggregate extraction fragmentation size distribution fines content explosive performance |
| title | Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone mine |
| title_full | Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone mine |
| title_fullStr | Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone mine |
| title_full_unstemmed | Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone mine |
| title_short | Rock fragmentation size distribution control in blasting: a case study of blasting mining in Changjiu Shenshan limestone mine |
| title_sort | rock fragmentation size distribution control in blasting a case study of blasting mining in changjiu shenshan limestone mine |
| topic | deep-hole bench blasting aggregate extraction fragmentation size distribution fines content explosive performance |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2023.1330354/full |
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