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| Study on stope structural parameter optimization of non-pillar sublevel caving in an iron mine |
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| DOI：10.3969/j.issn.1671-4172.2015.04.006 |
| KeyWord:non-pillar sublevel caving; orthogonal test; numerical simulation; stope structural parameters; PFC3D |
| Author | Institution |
| FENG Haonan |
（河北邯邢矿冶设计院有限公司，河北 邯郸 ） |
| SHU Taijing |
（河北邯邢矿冶设计院有限公司，河北 邯郸 ） |
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| Abstract: |
| Sublevel height, between-access space and caving step space are three important factors affecting sublevel caving. Combined with the production conditions of an iron ore in Jiangxi, using numerical simulation software PFC3D, 9 different sets of structural parameters of the model are simulated, which are determined by a combination of orthogonal design. The test results are analyzed. It is recommended that the optimal structural parameters of iron mine are parameters with sublevel height 14 m, between-access space 16 m and caving step space 3 m. |
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