| Stability and structural dimension of access mechanized panel |
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| 引用本文： | 罗一忠 吴爱祥 王范江 刘湘平. Stability and structural dimension of access mechanized panel[J]. 中南工业大学学报(英文版), 2005, 12(1): 73-77. DOI: 10.1007/s11771-005-0207-6 |
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| 作者姓名： | 罗一忠 吴爱祥 王范江 刘湘平 |
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| 作者单位： | SchoolofResourcesandSafetyEngineering,CentralSouthUniversity,Changsha410083,China |
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| 基金项目： | Project(2001BA901A09) supported by the Key Program of the 10th Five year Plan of China |
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| 摘 要： | To acquire a knowledge of the stress-strain state in the process of mining beforehand，a numerical method was used to simulate the stoping process of access mechanized panel mining in No. 3 ore-body of Tonglushan mine；and for the sake of obtaining better stability, the optimal panel dimension and access stoping sequence were researched. The results show that the integral stability of the mechanized panel of No. 3 ore-body is passable in the process of winning at full level height; the stability of panel tends to be worse gradually with continuous increasing of panel width; and the better width of access panel in No. 3 ore-body is less than 52 m. It is indicated that 3D elasto-plastic finite element method can make a satisfactory study of numerical simulation on the panel stability and its structural dimension in the test for the upward access mechanized-panel mining. The results of the theoretical calculation and analysis accord with the actual situation from the field ground pressure monitoring.
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| 关 键 词： | 机械盘 稳定性 顺序回采 结构尺寸 |
| 收稿时间： | 2004-03-12 |
| 修稿时间： | 2004-08-28 |
Stability and structural dimension of access mechanized panel |
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| Luo Yi-zhong , Wu Ai-xiang , Wang Hong-jiang and Liu Xiang-ping. Stability and structural dimension of access mechanized panel[J]. Journal of Central South University of Technology, 2005, 12(1): 73-77. DOI: 10.1007/s11771-005-0207-6 |
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| Authors: | Luo Yi-zhong Wu Ai-xiang Wang Hong-jiang Liu Xiang-ping |
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| Affiliation: | (1) School of Resources and Safety Engineering, Central South University, 410083 Changsha, China |
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| Abstract: | To acquire a knowledge of the stress-strain state in the process of mining beforehand, a numerical method was used to simulate the stoping process of access mechanized panel mining in No. 3 ore-body of Tonglushan mine; and for the sake of obtaining better stability, the optimal panel dimension and access stoping sequence were researched. The results show that the integral stability of the mechanized panel of No. 3 ore-body is passable in the process of winning at full level height; the stability of panel tends to be worse gradually with continuous increasing of panel width; and the better width of access panel in No.3 ore-body is less than 52 m. It is indicated that 3D elasto-plastic finite element method can make a satisfactory study of numerical simulation on the panel stability and its structural dimension in the test for the upward access mechanized-panel mining. The results of the theoretical calculation and analysis accord with the actual situation from the field ground pressure monitoring. |
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| Keywords: | mechanized panel stability stoping sequence structural dimension elasto-plastic finite element energy release rate |
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