Stability Analysis and Optimized Slope Angle for the Iron Ore Open-Pit Mine

Date

2015-04-17

Author

Akdağ, S.
Başarır, H.
Karpuz, Celal
Özyurt, M.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

165
views

0
downloads

With an increase in the overall slope height of open pit mines, stability analysis and amount of stripping waste rock becomes progressively difficult. It is necessary to optimize the overall slope angle by increasing it as much as possible with ensuring the mining safety. After comprehensive geotechnical investigation and rock mechanical laboratory tests, the combined use of limit equilibrium and numerical modeling analysis methods increases reliability and accuracy of the stability analysis. With the optimum slope design in Bizmisen iron ore mine, there will be a significant decrease in production cost and in the amount of stripping.

Subject Keywords

Factor of safety, Numerical modeling, Limit equilibrium method, Overall slope angle, Rock slope stability, Open-pit mining

URI

https://hdl.handle.net/11511/53472

Conference Name

24th INTERNATIONAL MINING CONGRESS OF TURKEY, (14 - 17 Nisan 2015)

Collections

Department of Mining Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Application of recent optimization algorithms on slope stability problems Azizi, Sadra; Pekcan, Onur; Department of Civil Engineering (2018) Stability analysis of earth slopes in general involves determining the minimum factor of safety (FS) associated with the most critical failure surface. This objective is too challenging to accomplish considering the broad diversity of slope problems in geometry, geotechnical parameters of the soil, location of the groundwater table, and condition of the external loadings. Robust optimization techniques, however, have recently performed well in determining safety factors of various man-made and natural slope...
Evaluation of Motion Selection and Scaling for the Nonlinear Seismic Analysis of Concrete Gravity Dams Soysal, Berat Feyza; Ay, Bekir Özer; Arıcı, Yalın (null; 2017-10-13) The selection and scaling of the ground motions is usually the most effective factor determining the results of the safety assessment for concrete gravity dams. The guidelines for the nonlinear transient analyses of buildings, such as the one presented in ASCE/SEI-7-10, are generally applied to these structures. While these procedures are well-studied for the moment frames, their effectiveness and consistency has not been studied for gravity dam structures. The selection and scaling of the ground motions fo...
Fuzzy approach in preliminary design of weak rock slopes for lignite mines Yardımcı, Ahmet Güneş; Karpuz, Celal; Department of Mining Engineering (2013) Slope mass rating (SMR) system, which is an enhanced version of rock mass rating (RMR), is a useful tool to be utilized for the preliminary stability analysis of rock slopes. Parameter scoring systems of both conventional RMR and SMR systems are based on crisp set theory. Common problems of conventional classification systems are assigning sharp boundaries for ranges, the same values for both upper and lower limits of ranges and presence of uncertainties as a result of complex nature of rock. These problems...
Application of artificial neural networks to predict the downhole inclination in directionally drilled geothermal wells Burak, Tunç; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2018) Drilling directionally through naturally fractured geothermal reservoirs is a challenging task due to unexpected changes in inclination and azimuth of the well axis, which causes inefficient weight on bit transfer, decrease in penetration rate, increasing the risk of stuck pipe and problems in while running casings. To predict the sudden changes in inclination while drilling, a back propagation, feed forwarded multi layered artificial neural network (ANN) model, which uses drilling data collected from 12 J-...
Assessment of cut slope stability in western Black Sea Region (Turkey) Özköse, Merve; Topal, Tamer; Department of Geological Engineering (2019) Cut slopes are intensely prone to weathering in the cause of excavation effects. Weathering effects can reduce strength of rocks and results in instabilities in the long run. By the reasons of rocks containing joints, fractures, faults, bedding planes and pore spaces, they are likely to be weathered because of wetting-drying cycles, climate changes, and chemical action of solutions absorbed. This study is mainly concerned with the slope stability analysis for sixteen permanent cut slopes that are composed o...

Citation Formats

S. Akdağ, H. Başarır, C. Karpuz, and M. Özyurt, “Stability Analysis and Optimized Slope Angle for the Iron Ore Open-Pit Mine,” presented at the 24th INTERNATIONAL MINING CONGRESS OF TURKEY, (14 - 17 Nisan 2015), Antalya, TURKEY, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53472.