Investigation of Bishop’s and Janbu’s Models Capabilities on Slope Stability Problems with Special Consideration to Open-Pit Mining Operations
محل انتشار: مجله معدن و محیط زیست، دوره: 11، شماره: 1
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 363
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شناسه ملی سند علمی:
JR_JMAE-11-1_010
تاریخ نمایه سازی: 17 فروردین 1399
چکیده مقاله:
One of the most effective parameters in economics of open-pit mines is the pit slope angle, so that the slope angle more than the optimum value increases the probability of a large failure in the pit wall and the slope angle less than the optimum value leads to increasing stripping ratio and reducing net present value of mine. Therefore, in this paper, considering the limit equilibrium methods of modified Bishop and modified Janbu and numerical models of the slope stability analysis, the effect of overall slope angle on the Economics of open pit mines was investigated. In addition, it was shown that selecting the overall slope angle less than the optimum value leads to reducing the depth of open-pit mining (the ultimate pit depth) and consequently, reducing the net present value of mine. Finally, in homogenous and Isotropic media, the results of Bishop and Janbu and numerical modeling are close together.
کلیدواژه ها:
Slope Stability ، Open-Pit ، Bishop and Janbu methods ، numerical model ، optimum overall slope angle
نویسندگان
A. Alikhani
Mining Engineering Department, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.
M. Taheri Moghadder
Mining Engineering Department, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.
H. Mohammadi
Mining Engineering Department, Faculty of Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran