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| Optimization of stope structure parameters based on FLAC3D two-step mechanized strip upward slicing and filling mining method |
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Received:June 22, 2021
Revised:June 28, 2021
Accepted:July 07, 2021
Published Online:April 27, 2022
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| DOI： |
| KeyWord:Upward cut and fill mining method; numerical simulation; Cementing pillar;structural parameters |
| Author | Institution |
| LuoFangwei |
School of Land and Resource Engineering,Kunming University of Science and Technology |
| LiGuangtao |
School of Land and Resource Engineering,Kunming University of Science and Technology |
| HeMingsheng |
Liangshan Mining Co,Ltd |
| WangJun |
School of Land and Resource Engineering,Kunming University of Science and Technology |
| TianMeng |
School of Land and Resource Engineering,Kunming University of Science and Technology |
| YangTianYu |
School of Land and Resource Engineering,Kunming University of Science and Technology |
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| Abstract: |
| Aiming at the problems of poor stope stability and large ore loss rate in the deep section of Lodang coal mine. In this paper, a two-step mechanized strip upward slicing and filling mining method is proposed, and the stability of stope structure is analyzed by FLAC3D. The research results show that the rationality of the structural parameters is verified by analyzing the plastic zone of the cementation pillar in the passage step and the tensile stress and vertical displacement of the roof plate in the passage step under the condition of 6m in the step of Ⅰ and 8m in the step of pillar in the passage step and the tensile stress and vertical displacement of the roof plate in the passage step. It has a certain reference value for the design and production of similar mines. |
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