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| Stability analysis and calculation methods for different slope types based on limit equilibrium theory |
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Received:April 18, 2022
Revised:April 18, 2022
Published Online:June 10, 2022
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| DOI： |
| KeyWord:slope stability; limit equilibrium method; safety factor; numerical simulation; prevent and treat slope; comparison of methods |
| Author | Institution |
| DONG Hewei |
首钢集团有限公司矿业公司 |
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| Abstract: |
| According to different types of open-pit mine slope, its failure mode and calculation method of slope stability are different. This paper aims to check the slope stability by analyzing the geological occurrence conditions of 8 typical regional sections of an iron mine and selecting appropriate calculation methods respectively based on the limit equilibrium theory. SLOPE/W module using Geostudio software is used in this paper to calculate, respectively simulating the safety factor of SLOPE under three loads: dead weight + groundwater, dead weight + groundwater + blasting vibration power, dead weight + groundwater + seismic force. Combined with the characteristics of SLOPE, the applicability, advantages and disadvantages of the Four methods, including The Swedish strip division method, Bishop method, accurate Janbu method and Morgenstern-Price method, are compared. It can provide more reference for the same industry to choose the appropriate calculation method for slope stability analysis. At the same time, combined with the actual mine, the corresponding treatment suggestions for different types of slopes are put forward. |
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