Volume 15 (2024)
Volume 14 (2023)
Volume 13 (2022)
Volume 12 (2021)
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)

Multiphase flow and tromp curve simulation of dense medium cyclones using Computational Fluid Dynamics

Akbar Farzanegan; Morteza Gholami; M. H. Rahimian

Volume 4, Issue 1 , January 2013, , Pages 67-76

https://doi.org/10.22044/jme.2013.142

Abstract
  Dense Medium Cyclone is a high capacity device that is widely used in coal preparation. It is simple in design but the swirling turbulent flow, the presence of medium and coal with different density and size fraction and the presence of the air-core make the flow pattern in DMCs complex. In this article ...  Read More

A model for predicting dynamic frothability index of dual-frother blends

Hamid Khoshdast; Sasan Mirshekari; Arefeh Zahab-Nazouri

Volume 6, Issue 1 , January 2015, , Pages 119-124

https://doi.org/10.22044/jme.2015.368

Abstract
  Dynamic frothability index (DFI) is a characteristic of any frother which presents useful information about frothing properties. The objective of this study is to introduce a prediction model for estimation of DFI value of dual-frother blends. Model uses the DFIs of frothers and mole ratio of weaker ...  Read More

Risk prediction based on a time series case study: Tazareh coal mine

M. Mohseni; M. Ataei

Volume 7, Issue 1 , January 2016, , Pages 127-134

https://doi.org/10.22044/jme.2016.514

Abstract
  In this work, the time series modeling was used to predict the Tazareh coal mine risks. For this purpose, initially, a monthly analysis of the risk constituents including frequency index and incidence severity index was performed. Next, a monthly time series diagram related to each one of these indices ...  Read More

Exploitation
Spatial modelling of zonality elements based on compositional nature of geochemical data using geostatistical approach: a case study of Baghqloom area, Iran

S. Talesh Hosseini; O. Asghari; Seyed R. Ghavami Riabi

Volume 9, Issue 1 , January 2018, , Pages 153-167

https://doi.org/10.22044/jme.2017.5904.1405

Abstract
  Due to the existence of a constant sum of constraints, the geochemical data is presented as the compositional data that has a closed number system. A closed number system is a dataset that includes several variables. The summation value of variables is constant, being equal to one. By calculating the ...  Read More

Experimental study on appropriate location of river material mining pits regarding extraction and utilization

H. Haghnazar; B. Hashemzadeh Ansar; R. Amini; M. Saneie

Volume 10, Issue 1 , January 2019, , Pages 163-175

https://doi.org/10.22044/jme.2018.7374.1589

Abstract
  River bed sand and gravel are utilized more than mountain materials due to their availability and closeness to the transit roads and sites of usage. Excessive and non-technical extraction of gravel and sand bring a kind of interference in them, leading to many negative consequences. Therefore, presenting ...  Read More

Study of Rock Pillar Failure Consisting of Non-Persistent Joint using Experimental Test and Fracture Analysis Code in Two Dimensions

V. Sarfarazi; H. Karimi Javid; K. Asgari

Volume 12, Issue 1 , January 2021, , Pages 163-179

https://doi.org/10.22044/jme.2020.10266.1968

Abstract
  The experimental and numerical methods were used to investigate the effects of joint number and joint angle on the failure behaviour of rock pillars under a uniaxial compressive test. The gypsum samples with dimensions of 200 mm × 200 mm × 50 mm were prepared. The compressive strength of ...  Read More

Estimation of In-Situ Block Size Distribution in Jointed Rock Masses using Combined Photogrammetry and Discrete Fracture Network

M. Ghaedi Ghalini; M. Bahaaddini; M. Amiri Hossaini

Volume 13, Issue 1 , January 2022, , Pages 175-184

https://doi.org/10.22044/jme.2022.11445.2129

Abstract
  Estimation of the in-situ block size is known as a key parameter in the characterization of the mechanical properties of rock masses. As the in-situ block size cannot be measured directly, several simplified methods have been developed, where the intrinsic variability of the geometrical features of discontinuities ...  Read More

Exploitation
A Mathematical Model to Optimize Allocation Sequence in Dispatching Problem

M. Ghobadi Samani; M. Monjezi; J. Khademi Hamidi; A. Mousavinogholi

Volume 11, Issue 1 , January 2020, , Pages 185-192

https://doi.org/10.22044/jme.2019.8721.1766

Abstract
  Truck-Shovel fleet, as the most common transportation system in open-pit mines, has a significant part of mining costs, for which optimal management can lead to substantial cost reductions. Among the available dispatch mathematical models, the multi-stage approach is well suited for allocating trucks ...  Read More

Geometrical Analysis of Fractures and Mineralized Veins of Gazkhizan Copper Deposit in Semnan Province, Iran

Zahra Rezaee Shahzadehaliakbari; Mehran Arian; Mohsen Pourkermani; Ali Solgi; Anahita Keynezhad

Volume 14, Issue 1 , January 2023, , Pages 197-216

https://doi.org/10.22044/jme.2023.12416.2251

Abstract
  The Gazkhizan Copper deposit is located in the Troud-Reshm zone, Central Iran. It is situated in a shear zone bounded by the Anjilo and Troud sinistral strike-slip faults from the north and south, respectively. Mineralization is done by siliceous-shear veins along with copper mineralization. About 41 ...  Read More

Prediction of Roof Failure in Pre-driven Entries and Selecting a Suitable Type of Recovery Room Method in Longwall Mining

Sajjad Aghababaei; Hossein Jalalifar; Ali Hosseini; Farhad Chinaei; Mehdi Najafi

Volume 15, Issue 1 , January 2024, , Pages 223-237

https://doi.org/10.22044/jme.2023.12787.2321

Abstract
  In this work, two rock engineering system (RES)-based models are presented, the first model to predict the roof failure when a longwall face advances toward a pre-driven recovery room (PDRR) and the second model to select the type of recovery room method for longwall mining. For the first model, an international ...  Read More

Gallium extraction from Jajarm Bayer process liquor using micro-emulsions

H. Amani; H. Naderi

Volume 8, Issue 2 , April 2017, , Pages 269-276

https://doi.org/10.22044/jme.2016.780

Abstract
  Gallium extraction from Jajarm Bayer process liquor (Jajarm, Iran) was investigated using microemulsions. Also the behavior of aluminum was studied as an impurity. Kelex100 (4-ethyl, 1-methyl, 7-octyl, 8-hydroxyquinoleine), iso-decanol and n-butanol, and kerosene were used as the surfactant, co-surfactant, ...  Read More

Bio-accumulation of major, trace, and rare earth elements by two Astragalus species grown on Agh-Dareh and Zarshouran gold deposits, Takab, NW Iran

S. Torbati; S. Alipour; M. Rostami; S. Hajializadeh

Volume 9, Issue 2 , April 2018, , Pages 417-429

https://doi.org/10.22044/jme.2018.6995.1539

Abstract
  The Agh-Dareh and Zarshouran mines are two known active gold deposits in Takab, NW Iran. In the present study, the potentials of two species of Astragalus (A. microcephalus from Agh-Dareh and A. effusus from Zarshouran mines), as the dominant plants grown in these areas, were assessed for the bio-accumulation ...  Read More

Mineral Processing
Use of density tracers in evaluating performance of Tri-Flo circuits Case study: Tabas (Iran) coal preparation plant

M. Noori; R. Dehghan

Volume 10, Issue 2 , April 2019, , Pages 441-450

https://doi.org/10.22044/jme.2019.7710.1637

Abstract
  In the Tabas coal preparation plant (SE Iran), -50 + 6 mm raw coal was treated in a 700 mm two-stage two-density Tri-Flo dynamic dense medium separator. In order to study the circuit performance and to evaluate the separator efficiency, 32 mm cubic density tracers were used in the range of 1.28-2.1 g/cm3 ...  Read More

Semi-Analytical Study of Settlement of Two Interfering Foundations Placed on a Slope

H. Haghgouei; A. Reza Kargar; M. H. Khosravi; M. Amini

Volume 12, Issue 2 , April 2021, , Pages 457-470

https://doi.org/10.22044/jme.2021.10509.2001

Abstract
  In many engineering constructions, the foundations should be built adjacent to each other. Therefore, the effect of interfering of close foundations should be considered in the design stage. In this research work, the effect of interference of closely separated foundations resting on a slope on the elastic ...  Read More

Exploitation
Optimal production strategy of bimetallic deposits under technical and economic uncertainties using stochastic chance-constrained programming

E. Bakhtavar; A. Jafarpour; S. Yousefi

Volume 8, Issue 3 , July 2017, , Pages 475-485

https://doi.org/10.22044/jme.2017.934

Abstract
  In order to catch up with reality, all the macro-decisions related to long-term mining production planning must be made simultaneously and under uncertain conditions of determinant parameters. By taking advantage of the chance-constrained programming, this paper presents a stochastic model to create ...  Read More

CFD Modeling of Impact of Gas Content Uncertainty on Methane Distribution in Underground Coal Mine Roadways

Sh. Rahimi; M. Ataee-pour; H. Madani

Volume 13, Issue 2 , April 2022, , Pages 493-502

https://doi.org/10.22044/jme.2022.11696.2158

Abstract
  Methane has been known as a safety risk for the coal mining activities. Accordingly, one can mitigate this risk, and hence, the level of hazard to which the mining workers are exposed, by predicting the possible exceedance of allowable methane dosage should be provided with a reliable information on ...  Read More

A New Method for Forecasting Uniaxial Compressive Strength of Weak Rocks

Hadi Fattahi

Volume 11, Issue 2 , April 2020, , Pages 505-515

https://doi.org/10.22044/jme.2020.9328.1835

Abstract
  The uniaxial compressive strength of weak rocks (UCSWR) is among the essential parameters involved for the design of underground excavations, surface and underground mines, foundations in/on rock masses, and oil wells as an input factor of some analytical and empirical methods such as RMR and RMI. The ...  Read More

Investigation of Fractures Effect on Building Stone Utilization: a Case Study

Hasan Alizadeh; Mahnaz Nedaei; Negar Tirandaz

Volume 14, Issue 2 , April 2023, , Pages 565-576

https://doi.org/10.22044/jme.2023.12512.2271

Abstract
  One of the significant negative factors involved in exploiting granite stones as ornamental stones is the presence of heterogeneous fractures within the rock mass. Joints can either be destructive or beneficial in the production granite piles and building stone mines depending on their characteristics. ...  Read More

Exploration
Delineation of Gold Exploration Targets based on Prospectivity Models through an Optimization Algorithm

Kamran Mostafaei; Mohammad Nabi Kianpour; Mahyar Yousefi

Volume 15, Issue 2 , April 2024, , Pages 597-611

https://doi.org/10.22044/jme.2023.13472.2489

Abstract
  Mineral prospectivity mapping (MPM) is a multi-staged process aiming at delimiting exploration targets. Experts’ knowledge is an indispensable component of MPM, and might be required (i) while translating signature features of ore-forming processes into a suite of maps, namely evidence layers, ...  Read More

Exploitation
Development of a site-specific regression model for assessment of road-header cutting performance of Tabas coal mine based on rock properties

E. Ghasemi

Volume 8, Issue 4 , October 2017, , Pages 663-672

https://doi.org/10.22044/jme.2017.955

Abstract
  In underground excavation, where the road-headers are employed, a precise prediction of the road-header performance has a vital role in the economy of the project. In this paper, a new model is developed for prediction of the road-header performance using the non-linear multivariate regression analysis. ...  Read More

Rock Mechanics
Improvement of coal mine roof rating classification using fuzzy type-2

R. Rafiee; A. Azarfar

Volume 9, Issue 3 , July 2018, , Pages 691-701

https://doi.org/10.22044/jme.2018.6736.1494

Abstract
  One of the main concerns of an underground coal mining engineer is the safety and stability of the mine. One way that the safety and stability can be ensured is to know and understand the coal mine geology and how it reacts to the mining process. One technique that has shown a lot of success in the coal ...  Read More

Exploitation
Delineation of podiform-type chromite mineralization using geochemical mineralization prospectivity index and staged factor analysis in Balvard area (SE Iran)

P. Afzal; M. Yusefi; M. Mirzaie; E. Ghadiri-Sufi; S. Ghasemzadeh; L. Daneshvar Saein

Volume 10, Issue 3 , July 2019, , Pages 705-715

https://doi.org/10.22044/jme.2019.8107.1678

Abstract
  The aim of this work was to delineate the prospects of podiform-type chromite by staged factor analysis and geochemical mineralization prospectivity index in Balvard area, SE Iran. The stream sediment data and fault density were used as the exploration features for prospectivity modeling in the studied ...  Read More

Compressive Failure Analyses of Rock-Like Materials by Experimental and Numerical Methods

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

Volume 12, Issue 3 , July 2021, , Pages 769-783

https://doi.org/10.22044/jme.2021.10819.2052

Abstract
  Investigating the crack propagation mechanism is of paramount importance in analyzing the failure process of most materials. This process may be exposed during each kind of loading on the materials. In this work, the cracking mechanism in rock-like materials is studied using the numerical methods and ...  Read More

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 , July 2020, , Pages 809-823

https://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 of single- and twin-tube tunnels in urban areas are developed, where the horizontal distance between the single- and ...  Read More

2D Simulation of Dynamic Transportation of Volatile Hydrocarbons in Vadose Zone of Tehran Oil Refinery and Industrial area of Ray, Tehran, Iran

Azadeh Agah; Faramarz Doulati Ardejani; Mohamad Javad Azinfar

Volume 13, Issue 3 , July 2022, , Pages 809-820

https://doi.org/10.22044/jme.2022.12004.2195

Abstract
  This work investigates the reactive transport of volatile hydrocarbons in the unconfined aquifer system of Tehran oil refinery and the industrial area of Ray, Tehran. A 2D finite volume model is presented to predict the soil gas contamination caused by LNAPL traveling on the phreatic surface through ...  Read More