Optimization of Stope Mining Sequence in Panel Mining During the Transition from Open-Pit to Underground Mining at Sijiaying Mine
1.Hebei Iron and Steel Group Mining Co., Ltd., Tangshan, Hebei 063009, China
2.Hebei Iron and Steel Group Mining Design Co., Ltd., Tangshan, Hebei 063009, China
3.Sijiaying Yanshan Iron Mine Co., Ltd., Hebei Iron and Steel Group, Tangshan, Hebei 063009, China
4.China ENFI Engineering Corporation, Beijing 100038, China
5.School of Mining Engineering, University of Science and Technology Liaoning, Anshan, Liaoning 114051, China
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