Study on shaping slope stability of dump in eastern grassland open-pit mine

The dumps in the open-pit mining area in the eastern grassland are prone to landslides due to the fragile ecological environment, so it is inevitable to reshape the dump slopes. In order to explore a more scientific method for slope shaping of open-pit mine dump, slope stability analysis were used t...

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Published in:E3S web of conferences 2020-01, Vol.194, p.4043
Main Authors: Xiaoli, Guo, Jiancheng, Yan, Xueliang, Li, Xin, Wen, Xingli, Li
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Jiancheng, Yan
Xueliang, Li
Xin, Wen
Xingli, Li
description The dumps in the open-pit mining area in the eastern grassland are prone to landslides due to the fragile ecological environment, so it is inevitable to reshape the dump slopes. In order to explore a more scientific method for slope shaping of open-pit mine dump, slope stability analysis were used to compare effect of three types of slope-type (wave-shaped, slope-shaped and step-shaped slope shaping method)in outside dumping site of Baori Hiller open-pit mine. The results show that the slope stability is negatively correlated with the slope angle, and the stability of different shaping slopes is realized as wave-shaped slope ( F =2.711)> Slope-shaped slope( F =2.513)>Step-shaped slope( F =1.047), in which the wave type and slope type are all within the safe range, but the step type slope is unstable; in consideration of cost, stability and erosion resistance, it is better to set the slope angle of the dump to 15°.The wave-shaped shaping method of the natural dumping of the excavation field outside the Baori Hiller open-pit mine has the best effect and is worth promoting.
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title Study on shaping slope stability of dump in eastern grassland open-pit mine
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