Study on determination of the stable slope configuration for deep open pit mine |
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| Authors: | Nai-long Zhu Shi-xiong Zhang Shu-yu Yue |
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| Institution: | [1]School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China [2]School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | The space effects of deep pit slope are analyzed by an elastic mechanics principle.The interaction among the critical slide angle,the friction coefficient,the cohesion,and the horizontal radius of the deep pits is derived in this paper.It indicates that the deeper the pit is excavated,the greater the critical slide angle is.Both the theory for reducing stripping waste rock in deep pit and the approach to determining the configuration of the stable slope are developed from the interaction.The theory in this paper comprises the preceding principles of stability analysis of slopes and is suitable for analyzing that of deep pit. |
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| Keywords: | Elastic mechanics Deep pit Slope stability Critical slide angle Ratio of stripping-to-ore |
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