Volume 13 (2022)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Original Research Paper
Estimation of Optimum Geometric Configuration of Mine Dumps in Wardha Valley Coalfields in India: A Case Study

R. Koner

Volume 12, Issue 4 , October 2021, Pages 907-927

http://dx.doi.org/10.22044/jme.2021.10979.2074

Abstract
  The Wardha valley coalfields, situated in the western part of India, contribute to more than 7% of the national coal production.  The open-pit mining methods are the modes of exploitation of coal in the majority of the mines in the area. Due to the increased depth of working and higher stripping ...  Read More

Case Study
Proposing a Viable Stabilization Method for Slope in a Weak Rock Mass Environment using Numerical Modelling: a Case Study from Cut Slopes

S. Hussain; Z. Ur Rehman; N. Muhammad Khan; I. Ahmad; S. Raza; M. Tahir; A. Ullah; D. Afzal; A. Khan; M. Salman; S. Sherin

Volume 12, Issue 4 , October 2021, Pages 929-940

http://dx.doi.org/10.22044/jme.2021.11198.2099

Abstract
  The design of a stable slope in a rock mass environment is a quite complicated job due to the anisotropic behaviour of the rock mass. In this research work, the cut slopes at the Swat motorway in the weakest schist rock is numerically analyzed by the shear strength reduction (SSR) approach using the ...  Read More

Case Study
Wedge Failure Analysis of the Slope Subjected to Uplift Forces by Analytical Method at Chingola Open Pits F & D

V. Mwango Bowa; W. Samiselo; E. Manda; Y. Lei; W. Zhou; A. Shane; S. Chinyanta

Volume 12, Issue 4 , October 2021, Pages 941-952

http://dx.doi.org/10.22044/jme.2021.11333.2115

Abstract
  The influence of variable groundwater has been overlooked in the available literature. Yet, wedge failure induced by variable groundwater is still commonly experienced in sedimentary rock formation in many commercial dams, highways, and surface mine slopes around the world. In this article, a robust ...  Read More

Original Research Paper
Substantiating Parameters of Reinforced Rock Supports

S. Hryhorovych Nehrii; T. Oleksandrivna Nehrii; H. Viktorivna Piskurska; E. Viktorovych Fesenko; Y. Yevhenovych Pavlov; A. Mykolaiovych Surzhenko

Volume 12, Issue 4 , October 2021, Pages 953-967

http://dx.doi.org/10.22044/jme.2021.11367.2117

Abstract
  In this work, we focus on the technology of stabilizing roof rocks by constructing separate rock supports reinforced with metal grids. Their parameters are specified using the results of physical structural modeling. The reinforced and non-reinforced rock supports with different fractional compositions ...  Read More

Original Research Paper
Application of Stochastic Simulation in Assessing Effect of Particle Morphology on Fracture Characteristics of Sandstone

K. Sultan shah; M. H. bin Mohd Hashim; H. Rehman; K. S. bin Ariffin

Volume 12, Issue 4 , October 2021, Pages 969-986

http://dx.doi.org/10.22044/jme.2021.11418.2124

Abstract
  Indirect tensile testing is used in order to investigate the effect of particle morphology (shape and size) on the various weathering grade sandstone fracture characteristics. Several fracture characteristics are discussed in depth in this work including the fracture length (FL), fracture deviation area ...  Read More

Original Research Paper
A Comparative Study on Machine Learning Algorithms for Geochemical Prediction Using Sentinel-2 Reflectance Spectroscopy

Muhammad Ahsan M.; T. Celik; B. Genc

Volume 12, Issue 4 , October 2021, Pages 987-1001

http://dx.doi.org/10.22044/jme.2021.11041.2080

Abstract
  The distribution of stream sediments is usually considered as an important and very useful tool for the early-stage exploration of mineralization at the regional scale. The collection of stream samples is not only time-consuming but also very costly. However, the advancements in space remote sensing ...  Read More

Original Research Paper
On Propagation Mechanism of Cracks Emanating from Two Neighboring Holes in Cubic Concrete Specimens under Various Lateral Confinements

M. Davood Yavari; H. Haeri; V. Sarfarazi; M. Fatehi Marji; H. A. Lazemi

Volume 12, Issue 4 , October 2021, Pages 1003-1017

http://dx.doi.org/10.22044/jme.2021.10834.2054

Abstract
  The propagation mechanism of cracks emanating from two holes within the concrete specimens is studied by considering the effects of different lateral compressive stresses. The experimental part of this research work is carried out on some specially prepared pre-cracked specimens with two neighbouring ...  Read More

Original Research Paper
Effect of Confining Pressure on Is(50) Obtained by Point Load Test

V. Sarfarazi; K. Asgari

Volume 12, Issue 4 , October 2021, Pages 1019-1028

http://dx.doi.org/10.22044/jme.2021.10918.2070

Abstract
  In this investigation, the impact of confining pressure on the tensile strength obtained by point load test (PLT) is examined by particle flow code in two dimensions. In this regard, at first, a numerical model is calibrated using the Brazilian experimental test results. The tensile strength of the model ...  Read More

Original Research Paper
Characterization of Leaching Feed and Residue of Mechanically Activated Sphalerite

R. Aram; M. Abdollahi; P. Pourghahramani; M. Mohseni; A. Khodadadi Darban

Volume 12, Issue 4 , October 2021, Pages 1029-1040

http://dx.doi.org/10.22044/jme.2021.11054.2082

Abstract
  In this research work, the solubility of sphalerite concentrate due to mechanical activation in planetary ball mill in both the wet and dry modes is investigated, and the parameters of mean particle size, BET specific surface area, SEM, and XRD are analyzed. The results of the particle size analysis ...  Read More

Original Research Paper
Fe3O4@TiO2@V2O5 as an Efficient Magnetic Nanoparticle for Synthesis of Di-Indolyl Oxindole Derivatives

H. Hassani; A. Agah

Volume 12, Issue 4 , October 2021, Pages 1041-1053

http://dx.doi.org/10.22044/jme.2021.11092.2086

Abstract
  In this work, Fe3O4@TiO2@V2O5 is synthesized via functionalization of Fe3O4 with TiO2 and then modifying with V2O5. The characterization of the synthesized nano-catalyst is performed using several methods including XRD, TEM, SEM, EDS, TGA, and VSM. This nano-catalyst impressively catalyzes the synthesis ...  Read More

Original Research Paper
Optimization of Chalcopyrite Bioleaching using Two Different Adaptation Methods: Top-Down and Bottom-Up

Z. Manafi; M. Kargar; F. Kafilzadeh

Volume 12, Issue 4 , October 2021, Pages 1055-1064

http://dx.doi.org/10.22044/jme.2021.11108.2089

Abstract
  Optimization of the effective parameters in the copper bioleaching of chalcopyrite concentrates (CuFeS2) is studied by moderately thermoacidophilic microorganisms. The microorganisms with extensive metabolic properties are used in two different ways: 'top-down' and 'bottom-up'. The bioleaching experiments ...  Read More

Original Research Paper
Low-Cost Approaches to Promote Performance of Comminution Circuit at Steel-Sirjan Iron Ore Complex

S. Zare; M. Maleki Moghaddam; J. Pourshaabadi

Volume 12, Issue 4 , October 2021, Pages 1065-1076

http://dx.doi.org/10.22044/jme.2021.11143.2094

Abstract
  The energy consumed by the comminution equipment accounts for the main part of the operating cost of the mineral processing plants. In order to conserve energy, attempts were made to increase the efficiency of the conventional comminution equipment. As a case study, in this research work, a process audit ...  Read More

Original Research Paper
Recognition of Gold Mineralization Potentials Based on Rock Samples Utilizing Staged Factor and Fractal Models, Bardaskan District (NE Iran)

L. Daneshvar Saein

Volume 12, Issue 4 , October 2021, Pages 1077-1088

http://dx.doi.org/10.22044/jme.2021.11156.2096

Abstract
  The purpose for this research is to define the gold mineralization potentials by the concentration-number fractal and staged factor analysis modeling based on rock samples at the Bardaskan area (NE Iran). Two main gold mineralization types are epithermal and disseminated systems in this district. First, ...  Read More

Original Research Paper Mineral Processing
An Experimental and CFD Investigation on Effect of Initial Bubble Diameter on its Rise Velocity Profile in A Laboratory-Scale Flotation Column Cell

N. Khorasanizadeh; M. Karamoozian; H. Nouri-Bidgoli

Volume 12, Issue 4 , October 2021, Pages 1089-1102

http://dx.doi.org/10.22044/jme.2021.11213.2101

Abstract
  The bubble diameter effect on the bubble rise velocity profile in a flotation column is studied by the two-phase computational fluid dynamics (CFD) method. The simulations are done in the ANSYS® Fluent® software using a two-phase volume of fluid model. The computational domain is a square cross-section ...  Read More

Original Research Paper
A New Case-Based Reasoning Method for Prediction of Fractured Height of Longwall Panels

H. Rasouli; K. Shahriar; H. Madani

Volume 12, Issue 4 , October 2021, Pages 1103-1121

http://dx.doi.org/10.22044/jme.2021.11230.2105

Abstract
  When longwall mining involves total extraction, it includes the overlying strata movements. In order to better control these movements, the height of fracturing (HoF) must be determined. HoF includes both the caved and continuous fractured zones, and represents the region of the broken ground whereby ...  Read More

Original Research Paper
Stochastic Stability Analysis of Tunnels Considering Randomness of Rock Mass Properties

M. Mazraehli; Sh. Zare; M. Adebayo Idris

Volume 12, Issue 4 , October 2021, Pages 1123-1141

http://dx.doi.org/10.22044/jme.2021.11310.2113

Abstract
  The purpose of this work is to present an approach for the probabilistic stability analysis of tunnels considering the heterogeneity of geo-mechanical properties. A stochastic procedure is followed to account for the variability in the rock mass property characterization. The finite difference method ...  Read More

Original Research Paper
Geochemical Study of Rare Earth Elements Content in Tabas Coal Ash, Parvadeh Coal Mine

G. Jozanikohan; M. Nosrati Abarghooei; H. Sedighi

Volume 12, Issue 4 , October 2021, Pages 1143-1153

http://dx.doi.org/10.22044/jme.2022.11319.2114

Abstract
  The most extensive Iranian coal-bearing basin is located in an area of 30000 km2, situated approximately 75 km from the Tabas county, south Khorasan Province, Iran. In this work, the Tabas coal ash is studied and investigated for the purpose of determination of the rare earth elements (REE) content, ...  Read More

Original Research Paper
An Analytical Method of Predicting Length of Grout Penetration in Jointed Rocks

M. M. Nazempour; A. Majdi

Volume 12, Issue 4 , October 2021, Pages 1155-1175

http://dx.doi.org/10.22044/jme.2022.11435.2127

Abstract
  Prediction of the length of grout penetration and assessment of the groutability around the boreholes in the jointed rocks have a crucial effect on the planning and execution of grouting. Grout distribution in jointed rocks is a function of the geo-mechanical properties of rock mass, grout properties, ...  Read More

Original Research Paper
Design of Loading and Transportation Fleet in Open-Pit Mines using Simulation Approach and Metaheuristic Algorithms

H. hadizadeh Ghaziania; M. Monjezi; A. Mousavi; H. Dehghani; E. Bakhtavar

Volume 12, Issue 4 , October 2021, Pages 1177-1188

http://dx.doi.org/10.22044/jme.2022.11450.2131

Abstract
  The production cycle in open-pit mines includes the drilling, blasting, loading, and haulage. Since loading and haulage account for a large part of the mining costs, it is very important to optimize the transport fleet from the economic viewpoint. Simulation is one of the most widely used methods in ...  Read More

Original Research Paper
A Modified Indirect Boundary Element Analysis for Fatigue Behavior Assessment of Rock-Like Materials Based on Linear Elastic Fracture Mechanics

R. Alizadeh; M. Fatehi Marji; A. Abdollahipour; M. Pourghasemi Sagand

Volume 12, Issue 4 , October 2021, Pages 1189-1203

http://dx.doi.org/10.22044/jme.2022.11534.2139

Abstract
  In this work, an effective methodology is introduced for modeling the fatigue crack propagation in linear elastic brittle media. The displacement discontinuity method is used to accomplish the analysis, and the boundaries are discretized with quadratic elements in order to predict the stress intensity ...  Read More