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圆锥滚子轴承保持架优化设计
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作者 刘敬旭 《轴承技术》 2008年第1期6-8,共3页
通过对圆锥滚子轴承保持架外径与外滚道表面之间的间隙△s分析,利用Mathematica软件对圆锥滚子轴承保持架进行优化设计,改进轴承旋转质量。
关键词 圆锥滚子轴承 保持架 压坡深度 MATHEMATICA
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Optimizing and slope determination of final wall for Maiduk Mine with consideration of destabilizer factors 被引量:1
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作者 Shamsoddin Saeed Masoud Maarefvand Parviz Yaaghubi Ebrahim 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第3期501-509,共9页
In this research, determination of final slope for Maiduk copper mine of Kerman is investigated according to destabilizing factors of the mine. The development of the Maiduk Mine caused the extension of the mine area ... In this research, determination of final slope for Maiduk copper mine of Kerman is investigated according to destabilizing factors of the mine. The development of the Maiduk Mine caused the extension of the mine area and also withdrawal of its wall. So, optimizing possibility of mine slope is essential. Finally,the magnitude of optimized slopes for different walls of the mine in association with executive commands with better factors of safety is provided. The results show that the most important destabilizer factors are the presence of water and pore pressure in the faults and the main joints. With the omission of pore pressure, mine wall for the designed depth is quite stable. This requires a drainage pattern in the lifetime of the mine. In an optimistic point of view, the minimum factor of safety of the wall will be 2.81 even without drainage. This conclusion allows optimizing the slope to its maximum magnitude of 51 degree. With the pessimistic engineering judgment and with the higher SF, the magnitude of the slope is optimized to 47 degree. 展开更多
关键词 Optimizing Destabilizer factors Final slope Maiduk copper mine
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