Full
Outline
The block caving is one of the most efficient mining methods for large, thick, and fragmented ore bodies. However, the draw control process is strongly affected by ore fragmentation, grade mixing, and variations in geological conditions, which often results in ore loss and dilution and consequently constrains resource recovery and economic performance. To address these issues, a draw planning and management system for block caving was developed with the aim of improving draw control efficiency and economic benefits through systematic planning, intelligent decision support, and visualized production management. The system was developed using a platform-plugin software architecture and a three-layer framework consisting of a presentation layer, a core application layer, and a data layer. It integrates three key functional modules, including scheme design, draw planning, and production management, and employs PostgreSQL with spatial data extensions to enable unified data storage and efficient access. Field application results show that the system stabilizes the daily ore grade at approximately 0.32 %, with intraday grade fluctuations controlled within ± 0.01 %, and increases the resource recovery rate by about 0.5 %. Based on the designed production capacity and metal price, the annual reduction in metal loss is estimated to be approximately 92.22 million CNY. These results demonstrate that the proposed system provides effective decision support for block caving draw control and exhibits strong engineering applicability and promotion potential.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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