Original Research Paper
Blast Design for Improved Productivity using a Modified Available Energy Method
1. Blast Design for Improved Productivity using a Modified Available Energy Method

S. Mulenga; R. Kaunda

Volume 11, Issue 3 , Summer 2020, Pages 643-659

http://dx.doi.org/10.22044/jme.2020.9506.1861

Abstract
  In this work, a new drilling and blasting design methodology is introduced and applied at a case study mine to improve productivity. For the case study copper mine, a blast diameter ...  Read More
Original Research Paper
A Preliminary Assessment of Rock Slope Stability in Tropical Climates: A Case Study at Lafarge Quarry, Perak, Malaysia
2. A Preliminary Assessment of Rock Slope Stability in Tropical Climates: A Case Study at Lafarge Quarry, Perak, Malaysia

K.S. Shah; M. H. Mohd Hashim; K.S. Ariffin; N. F. Nordin

Volume 11, Issue 3 , Summer 2020, Pages 661-673

http://dx.doi.org/10.22044/jme.2020.9814.1901

Abstract
  The stability analysis of rock slopes is a complex task for the geotechnical engineers due to the complex nature of the rock mass in a tropical climate that often has discontinuities ...  Read More
Original Research Paper
Investigation of Effect of Number of Lifters on Performance of Pilot-Scale SAG Mills Using Discrete Element Method
3. Investigation of Effect of Number of Lifters on Performance of Pilot-Scale SAG Mills Using Discrete Element Method

S. Kolahi; M. Jahani Chegeni

Volume 11, Issue 3 , Summer 2020, Pages 675-693

http://dx.doi.org/10.22044/jme.2020.9045.1793

Abstract
  The number of lifters of mill shell liners, mill rotation speed, and filling percentage of grinding media are three of the most important parameters influencing the charge behavior ...  Read More
Original Research Paper
Application of Sequential Gaussian Conditional Simulation to Underground Mine Design Under Grade Uncertainty
4. Application of Sequential Gaussian Conditional Simulation to Underground Mine Design Under Grade Uncertainty

F. Sotoudeh; M. Ataei; R. Kakaie; Y. Pourrahimian

Volume 11, Issue 3 , Summer 2020, Pages 695-709

http://dx.doi.org/10.22044/jme.2019.7333.1582

Abstract
  In mining projects, all uncertainties associated with a project must be considered to determine the feasibility study. Grade uncertainty is one of the major components of technical ...  Read More
Original Research Paper
On Applicability of Some Indirect Tests for Estimation of Tensile Strength of Anisotropic Rocks
5. On Applicability of Some Indirect Tests for Estimation of Tensile Strength of Anisotropic Rocks

F. Rastegar; H. R. Nejati; A. Ghazvinian; M. R. Hadei; A. Nazerigivi

Volume 11, Issue 3 , Summer 2020, Pages 711-720

http://dx.doi.org/10.22044/jme.2020.9220.1813

Abstract
  The tensile strength of rocks plays a noteworthy role in their failure mechanism, and its determination can be beneficial in optimizing the design of the rock structures. Schistose ...  Read More
Original Research Paper
A Comprehensive Study of Several Meta-Heuristic Algorithms for Open-Pit Mine Production Scheduling Problem Considering Grade Uncertainty
6. A Comprehensive Study of Several Meta-Heuristic Algorithms for Open-Pit Mine Production Scheduling Problem Considering Grade Uncertainty

K. Tolouei; E. Moosavi; A.H. Bangian Tabrizi; P. Afzal; A. Aghajani Bazzazi

Volume 11, Issue 3 , Summer 2020, Pages 721-736

http://dx.doi.org/10.22044/jme.2020.9127.1803

Abstract
  It is significant to discover a global optimization in the problems dealing with large dimensional scales to increase the quality of decision-making in the mining operation. It has ...  Read More
Original Research Paper
Effect of Segmental Joint on Internal Forces in Tunnel Lining under Seismic Loading by Numerical Method
7. Effect of Segmental Joint on Internal Forces in Tunnel Lining under Seismic Loading by Numerical Method

Gh.H. Ranjbar; K. Shahriar; K. Ahangari

Volume 11, Issue 3 , Summer 2020, Pages 737-751

http://dx.doi.org/10.22044/jme.2020.8979.1785

Abstract
  Although segmental tunnel linings are often used for seismic areas, the influence of segment joints on the segmental lining behavior under seismic loading has not been thoroughly considered ...  Read More
Original Research Paper
Comparison of Copper Dissolution in Chalcopyrite Concentrate Bioleaching with Acidianus Brierleyi in Different Initial pH Values
8. Comparison of Copper Dissolution in Chalcopyrite Concentrate Bioleaching with Acidianus Brierleyi in Different Initial pH Values

M. R. Samadzadeh Yazdi; M. Abdollahi; S. M. Mousavi; A. Khodadadi Darban

Volume 11, Issue 3 , Summer 2020, Pages 753-764

http://dx.doi.org/10.22044/jme.2020.9447.1853

Abstract
  Although bioleaching of chalcopyrite by thermophilic microorganisms enhances the rate of copper recovery, a high temperature accelerates iron precipitation as jarosite, which can bring ...  Read More
Original Research Paper
A New Mathematical Model for Production Scheduling in Sub-level Caving Mining Method
9. A New Mathematical Model for Production Scheduling in Sub-level Caving Mining Method

M. Shenavar; M. Ataee-pour; M. Rahmanpour

Volume 11, Issue 3 , Summer 2020, Pages 765-778

http://dx.doi.org/10.22044/jme.2020.9139.1804

Abstract
  Production scheduling in underground mines is still a manual process, and achieving a truly optimal result through manual scheduling is impossible due to the complexity of the scheduling ...  Read More
Original Research Paper
Dissolution of Nickel and Cobalt from Iron-Rich Laterite Ores Using Different Organic Acids
10. Dissolution of Nickel and Cobalt from Iron-Rich Laterite Ores Using Different Organic Acids

M. Hosseini Nasab; M. Noaparast; H. Abdollahi

Volume 11, Issue 3 , Summer 2020, Pages 779-797

http://dx.doi.org/10.22044/jme.2020.9564.1869

Abstract
  Due to the decreasing production of nickel and cobalt from sulfide sources, the Ni and Co extraction from the oxide ores (laterites) have become more prevalent. In this research work, ...  Read More
Original Research Paper
A Correlation for Estimating LCPC Abrasivity Coefficient using Rock Properties
11. A Correlation for Estimating LCPC Abrasivity Coefficient using Rock Properties

M. Ansari; M. Hosseini; A. R. Taleb Beydokhti

Volume 11, Issue 3 , Summer 2020, Pages 799-808

http://dx.doi.org/10.22044/jme.2020.9520.1863

Abstract
  Rock abrasivity, as one of the most important parameters affecting the rock drillability, significantly influences the drilling rate in mines. Therefore, rock abrasivity should be carefully ...  Read More
Original Research Paper
A 3D Finite-Difference Analysis of Interaction between a Newly-Driven Large Tunnel with Twin Tunnels in Urban Areas
12. A 3D Finite-Difference Analysis of Interaction between a Newly-Driven Large Tunnel with Twin Tunnels in Urban Areas

S. Akbari; Sh. Zare; H. Chakeri; H. Mirzaei Nasir Abad

Volume 11, Issue 3 , Summer 2020, Pages 809-823

http://dx.doi.org/10.22044/jme.2020.9444.1851

Abstract
  Evaluation of the interaction between a new and the existing underground structures is one of the important problems in urban tunneling. In this work, using FLAC3D, four numerical models ...  Read More
Original Research Paper
Copper Price Prediction using Wave Count with Contribution of Elliott Waves
13. Copper Price Prediction using Wave Count with Contribution of Elliott Waves

R. Satari; A. Akbari Dehkharghani; K. Ahangari

Volume 11, Issue 3 , Summer 2020, Pages 825-835

http://dx.doi.org/10.22044/jme.2020.9240.1822

Abstract
  Within the last few decades, copper has been identified as one of the most applicable metals by many researchers. These researchers have also been enthusiastic to predict the price ...  Read More
Original Research Paper
Mechanical Properties of Low Plasticity Clay Soil Stabilized with Iron Ore Mine Tailing and Portland Cement
14. Mechanical Properties of Low Plasticity Clay Soil Stabilized with Iron Ore Mine Tailing and Portland Cement

A. R. Ghanizadeh; A. Yarmahmoudi; H. Abbaslou

Volume 11, Issue 3 , Summer 2020, Pages 837-853

http://dx.doi.org/10.22044/jme.2020.9304.1860

Abstract
  Due to economical and environmental issues, utilization of mineral wastes, e.g. iron ore mine tailing (IOMT), as road materials can be recommended as a sustainable alternative. In the ...  Read More
Original Research Paper
Behavior of a Tunnel and its Neighboring Joint with and without Presence of Rock Bolt under Biaxial Loads; Particle Flow Code Approach
15. Behavior of a Tunnel and its Neighboring Joint with and without Presence of Rock Bolt under Biaxial Loads; Particle Flow Code Approach

V. Sarfarazi

Volume 11, Issue 3 , Summer 2020, Pages 855-864

http://dx.doi.org/10.22044/jme.2020.9581.1872

Abstract
  In this work, the interaction between the semi-circular space and the neighboring joint with and without the presence of rock bolts was investigated using the particle flow code (PFC) ...  Read More
Original Research Paper
Integrating Geophysical Attributes with New Cuckoo Search Machine-Learning Algorithm to Estimate Silver Grade Values–Case Study: Zarshouran Gold Mine
16. Integrating Geophysical Attributes with New Cuckoo Search Machine-Learning Algorithm to Estimate Silver Grade Values–Case Study: Zarshouran Gold Mine

A. Alimoradi; B. Maleki; A. Karimi; M. Sahafzadeh; S. Abbasi

Volume 11, Issue 3 , Summer 2020, Pages 865-879

http://dx.doi.org/10.22044/jme.2020.9939.1923

Abstract
  The exploration methods are divided into the direct and indirect categories. Among these, the indirect geophysical methods are more time- and cost-effective compared with the direct ...  Read More
Original Research Paper
Investigating and Ranking Blasting Patterns to Reduce Ground Vibration using Soft Computing Approaches and MCDM Technique
17. Investigating and Ranking Blasting Patterns to Reduce Ground Vibration using Soft Computing Approaches and MCDM Technique

D. Mohammadi; R. Mikaeil; J. Abdollahei Sharif

Volume 11, Issue 3 , Summer 2020, Pages 881-897

http://dx.doi.org/10.22044/jme.2020.9446.1852

Abstract
  The blasting method is one of the most important operations in most open-pit mines that has a priority over the other mechanical excavation methods due to its cost-effectiveness and ...  Read More
Original Research Paper
A New Method for Predicting Indirect Tensile Strength of Sandstone Rock Samples
18. A New Method for Predicting Indirect Tensile Strength of Sandstone Rock Samples

H. Fattahi

Volume 11, Issue 3 , Summer 2020, Pages 899-908

http://dx.doi.org/10.22044/jme.2020.9775.1897

Abstract
  The tensile strength (σt) of a rock plays an important role in the reliable construction of several civil structures such as dam foundations and types of tunnels and excavations. ...  Read More
Original Research Paper
Development of a New Experimental Technique for Dynamic Fracture Toughness Measurement of Rocks using Drop Weight Test
19. Development of a New Experimental Technique for Dynamic Fracture Toughness Measurement of Rocks using Drop Weight Test

Gh. Khandouzi; H. Memarian; M. H. Khosravi

Volume 11, Issue 3 , Summer 2020, Pages 909-920

http://dx.doi.org/10.22044/jme.2020.9818.1903

Abstract
  The dynamic fracture characteristics of rock specimens play an important role in analyzing the fracture issues such as blasting, hydraulic fracturing, and design of supports. Several ...  Read More
Original Research Paper
Investigation of Mechanism of Adsorption of Xanthate and Hydroxamate on Malachite
20. Investigation of Mechanism of Adsorption of Xanthate and Hydroxamate on Malachite

M. Mohammadkhani; M. Abdollahy; M. R. Khalesi

Volume 11, Issue 3 , Summer 2020, Pages 921-933

http://dx.doi.org/10.22044/jme.2020.9755.1895

Abstract
  Copper oxide minerals such as malachite do not respond well to the traditional copper sulfide collectors, and require alternative flotation schemes. In many copper ore mines, significant ...  Read More