Original Research Paper
Determining optimal distance from outlet of auxiliary forcing ventilation system to development of heading in underground mines
1. Determining optimal distance from outlet of auxiliary forcing ventilation system to development of heading in underground mines

V. Adjiski; D. Mirakovski; Z. Despodov; S. Mijalkovski

Volume 10, Issue 4 , Autumn 2019, Pages 821-832

http://dx.doi.org/10.22044/jme.2019.8140.1683

Abstract
  Auxiliary ventilation of the blind development heading in underground mines is one of the most challenging work activities amongst mining underground operations. The auxiliary forcing ...  Read More
Case Study
Evaluation of stream sediment contamination by potentially toxic elements around mining and farming areas (SE Nigeria)
2. Evaluation of stream sediment contamination by potentially toxic elements around mining and farming areas (SE Nigeria)

G.U Sikakwe

Volume 10, Issue 4 , Autumn 2019, Pages 833-851

http://dx.doi.org/10.22044/jme.2019.8180.1690

Abstract
  In this work, the concentrations of the potentially toxic elements in stream sediments in SE Nigeria were assessed for pollution monitoring in mining, quarrying, and farming areas. ...  Read More
Original Research Paper
Calculating inter-sectoral carbon flows of a mining sector via hypothetical extraction method
3. Calculating inter-sectoral carbon flows of a mining sector via hypothetical extraction method

M. J. Sajid; N. Shahani; M. Ali

Volume 10, Issue 4 , Autumn 2019, Pages 853-867

http://dx.doi.org/10.22044/jme.2019.8263.1701

Abstract
  Mining is among the oldest industries. It is the primary source of raw materials for most of the sectors. Little is known about the complex inter-sectoral carbon linkages of the mining ...  Read More
Original Research Paper
Evaluation of background geochemical speciation of heavy metals in overburden topsoil of bituminous sand deposit area, Ondo state, Nigeria
4. Evaluation of background geochemical speciation of heavy metals in overburden topsoil of bituminous sand deposit area, Ondo state, Nigeria

O.E. Ifelola

Volume 10, Issue 4 , Autumn 2019, Pages 869-882

http://dx.doi.org/10.22044/jme.2019.8377.1725

Abstract
  Metals are ubiquitous within the earth crust. However, the exceptional high-level concentration of heavy metals in the soil due to natural or anthropogenic activities and the chemical ...  Read More
Original Research Paper
Delineation of alteration zones based on artificial neural networks and concentration-volume fractal methods in the hypogene zone of porphyry copper-gold deposit, Masjed-Daghi, East Azerbaijan Province, Iran
5. Delineation of alteration zones based on artificial neural networks and concentration-volume fractal methods in the hypogene zone of porphyry copper-gold deposit, Masjed-Daghi, East Azerbaijan Province, Iran

H. Nikoogoftar; A. Hezarkhani

Volume 10, Issue 4 , Autumn 2019, Pages 883-901

http://dx.doi.org/10.22044/jme.2019.7948.1663

Abstract
  In this paper, we aim to achieve two specific objectives. The first one is to examine the applicability of the Artificial Neural Networks (ANNs) technique in ore grade estimation. Different ...  Read More
Original Research Paper
Application of simulated annealing for optimization of blasting costs due to air overpressure constraints in open-pit mines
6. Application of simulated annealing for optimization of blasting costs due to air overpressure constraints in open-pit mines

H. Bakhshandeh Amnieh; M. Hakimiyan Bidgoli; H. Mokhtari; A. Aghajani Bazzazi

Volume 10, Issue 4 , Autumn 2019, Pages 903-916

http://dx.doi.org/10.22044/jme.2019.8084.1675

Abstract
  Estimating the costs of blasting operations is an important parameter in open-pit mining. Blasting and rock fragmentation depend on two groups of variables. The first group consists ...  Read More
Original Research Paper
Development of a GEP model to assess CERCHAR abrasivity index of rocks based on geomechanical properties
7. Development of a GEP model to assess CERCHAR abrasivity index of rocks based on geomechanical properties

M. H. Kadkhodaei; E. Ghasemi

Volume 10, Issue 4 , Autumn 2019, Pages 917-928

http://dx.doi.org/10.22044/jme.2019.8141.1684

Abstract
  The CERCHAR abrasivity test is very popular for determination of rock abrasivity. An accurate estimation of the CERCHAR abrasivity index (CAI) is useful for excavation operation costs. ...  Read More
Original Research Paper
Characterization of rare earth elements by coupling multivariate analysis, factor analysis, and geostatistical simulation; case-study of Gazestan deposit, central Iran
8. Characterization of rare earth elements by coupling multivariate analysis, factor analysis, and geostatistical simulation; case-study of Gazestan deposit, central Iran

F. Soltani; P. Moarefvand; F. Alinia; P. Afzal

Volume 10, Issue 4 , Autumn 2019, Pages 929-945

http://dx.doi.org/10.22044/jme.2019.8374.1716

Abstract
  The traditional approaches of modeling and estimation of highly skewed deposits have led to incorrect evaluations, creating challenges and risks in resource management. The low concentration ...  Read More
Original Research Paper
Application of cut set method to reliability evaluation of mine ventilation networks
9. Application of cut set method to reliability evaluation of mine ventilation networks

Z. Rezaei; M. Ataee-pour; H. Madani

Volume 10, Issue 4 , Autumn 2019, Pages 947-966

http://dx.doi.org/10.22044/jme.2019.8440.1722

Abstract
  Providing a fresh and cool airflow in underground mines is one of the main concerns during mining. Destruction of support systems, the presence of undesirable objects in the airway ...  Read More
Original Research Paper
Effects of number of freeze-thaw cycles and freezing temperature on mode I and mode II fracture toughness of cement mortar
10. Effects of number of freeze-thaw cycles and freezing temperature on mode I and mode II fracture toughness of cement mortar

K. Abdolghanizadeh; M. Hosseini; M. Saghafiyazdi

Volume 10, Issue 4 , Autumn 2019, Pages 967-978

http://dx.doi.org/10.22044/jme.2019.8501.1728

Abstract
  Natural and artificial materials including rocks and cement-based materials such as concrete and cement mortar are affected both physically and chemically by various natural factors ...  Read More
Original Research Paper
A numerical analysis of effect of segmental lining joints on tunnel support internal forces under seismic loading
11. A numerical analysis of effect of segmental lining joints on tunnel support internal forces under seismic loading

I. Kheyrandish; M. Ahmadi; H. Jahankhah

Volume 10, Issue 4 , Autumn 2019, Pages 979-999

http://dx.doi.org/10.22044/jme.2019.8508.1730

Abstract
  During an earthquake, the better performance of segmental tunnel lining, compared to the continuous in-cast concrete lining, is generally related to the joints between segments. In ...  Read More
Original Research Paper
Numerical analysis of slide-head-toppling failure
12. Numerical analysis of slide-head-toppling failure

H. Sarfaraz; M. H. Khosravi; M. Amini

Volume 10, Issue 4 , Autumn 2019, Pages 1001-1011

http://dx.doi.org/10.22044/jme.2019.8521.1731

Abstract
  In layered and blocky rock slopes, toppling failure is a common mode of instability that may occur in mining engineering. If this type of slope failure occurs as a consequence of another ...  Read More
Original Research Paper
Copper recovery from thickener overflow by electrocoagulation/flotation: optimization of response surface, modeling, and sludge study
13. Copper recovery from thickener overflow by electrocoagulation/flotation: optimization of response surface, modeling, and sludge study

A. Hasanzadeh_Sablouei; Seyed M. Moosavirad

Volume 10, Issue 4 , Autumn 2019, Pages 1013-1029

http://dx.doi.org/10.22044/jme.2019.8569.1737

Abstract
  The electrocoagulation/flotation process is a novel approach in mining industry that is implemented to return Cu metal to the production cycle, which improves copper recovery and reduces ...  Read More
Original Research Paper
Effect of segmental joint stiffness on tunnel lining internal forces under static conditions
14. Effect of segmental joint stiffness on tunnel lining internal forces under static conditions

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

Volume 10, Issue 4 , Autumn 2019, Pages 1031-1043

http://dx.doi.org/10.22044/jme.2019.8581.1738

Abstract
  According to the wide application of segmental lining in mechanized tunneling, recognizing the behavior of segmental lining joints is important in tunnels designing. In the structural ...  Read More
Original Research Paper
Analysis of reliability and maintainability for multiple repairable units (Case study: Sungun copper mine)
15. Analysis of reliability and maintainability for multiple repairable units (Case study: Sungun copper mine)

R. Razzaghzadeh; R. Shakoor Shahabi; A. Nouri Qarahasanlou

Volume 10, Issue 4 , Autumn 2019, Pages 1045-1059

http://dx.doi.org/10.22044/jme.2019.8646.1745

Abstract
  The appropriate operating of mining machines is affected by both the executive and environmental factors. Considering the effects and the related risks lead to a better understanding ...  Read More
Original Research Paper
Geostatistical and multi-fractal modeling of geological and geophysical characteristics in Ghalandar Skarn-Porphyry Cu Deposit, Iran
16. Geostatistical and multi-fractal modeling of geological and geophysical characteristics in Ghalandar Skarn-Porphyry Cu Deposit, Iran

S. Salarian; O. Asghari; M. Abedi; S. K. Alilou

Volume 10, Issue 4 , Autumn 2019, Pages 1061-1081

http://dx.doi.org/10.22044/jme.2019.8687.1752

Abstract
  This work aims at figuring out the spatial relationships between the geophysical and geological models in a case study pertaining to copper-sulfide mineralization through an integrated ...  Read More
Original Research Paper
Solvent extraction and stripping of zinc from synthetic chloride solution in presence of manganese and cadmium as impurities
17. Solvent extraction and stripping of zinc from synthetic chloride solution in presence of manganese and cadmium as impurities

H. Jafari; H. Abdollahi; M. Gharabaghi; A.A. Balesini

Volume 10, Issue 4 , Autumn 2019, Pages 1083-1093

http://dx.doi.org/10.22044/jme.2019.8708.1755

Abstract
  In this research work, solvent extraction and stripping of zinc ions from a Zn-Mn-Cd-bearing solution was investigated using D2EHPA as the extractant in a chloride medium. The efficiency ...  Read More
Original Research Paper
Use of a mixed integer programming model to achieve an optimum size of blast block in open-pit mining with regard to size of mineable block using fuzzy logic approach
18. Use of a mixed integer programming model to achieve an optimum size of blast block in open-pit mining with regard to size of mineable block using fuzzy logic approach

A. Mozafari; A. H. Bangian Tabrizi; M. Taji; A. Parhizkar

Volume 10, Issue 4 , Autumn 2019, Pages 1095-1104

http://dx.doi.org/10.22044/jme.2019.8786.1763

Abstract
  In this paper, we present an integrated model to find the optimum size of blast block that uses (i) a multi-criteria decision-making method to specify the applicable size of the mineable ...  Read More
Original Research Paper
Performance evaluation of chain saw machines for dimensional stones using feasibility of neural network models
19. Performance evaluation of chain saw machines for dimensional stones using feasibility of neural network models

J. Mohammadi; M. Ataei; R. Kakaie; R. Mikaeil; S. Shaffiee Haghshenas

Volume 10, Issue 4 , Autumn 2019, Pages 1105-1119

http://dx.doi.org/10.22044/jme.2018.7013.1542

Abstract
  Prediction of the production rate of the cutting dimensional stone process is crucial, especially when chain saw machines are used. The cutting dimensional rock process is generally ...  Read More
Original Research Paper
Fractal-wavelet-fusion-based re-ranking of joint roughness coefficients
20. Fractal-wavelet-fusion-based re-ranking of joint roughness coefficients

M. Lotfi; B. Tokhmechi

Volume 10, Issue 4 , Autumn 2019, Pages 1121-1133

http://dx.doi.org/10.22044/jme.2019.7489.1614

Abstract
  Nowadays, Barton’s Joint Roughness Coefficients (JRC) are widely used as the index for roughness and as a challenging fracture property. When JRC ranking is the goal, deriving ...  Read More