Volume 15 (2024)
Volume 14 (2023)
Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Case Study
Computational fluid dynamics simulations for investigation of parameters affecting goaf gas distribution

K.M. Tanguturi; R.S. Balusu

Volume 9, Issue 3 , July 2018, Pages 547-557


  It is necessary to obtain a fundamental understanding of the goaf gas flow patterns in longwall mine in order to develop optimum goaf gas drainage and spontaneous combustion (sponcom) management strategies. The best ventilation layout for a longwall underground mine should assist in goaf gas drainage ...  Read More

Case Study
XRF analysis of coal bioleaching by chemolithoheterotrophic Alicyclobacillus HRM5 and chemolithoautotrophic Acidithiobacillus ferrooxidans

Sh. Sadat Etemadzadeh; G. Emtiazi; Z. Etemadifar

Volume 9, Issue 3 , July 2018, Pages 559-566


  Most studies on sulfur bioleaching from coal depend on an autotrophic microorganism with a low growth and a long leaching time. For this reason, heterotrophic heat and acidic pH-resistant Alicyclobacillus was used as the growing and resting cells for the sulfur and iron removal from coal. The results ...  Read More

Case Study
Structural analysis of impacting factors of sustainable development in underground coal mining using DEMATEL method

R. Norouzi Masir; R. Khalokakaie; M. Ataei; S. Mohammadi

Volume 9, Issue 3 , July 2018, Pages 567-579


  Mining can become more sustainable by developing and integrating economic, environmental, and social components. Among the mining industries, coal mining requires paying a serious attention to the aspects of sustainable development. Therefore, in this work, we investigate the impacting factors involved ...  Read More

Case Study
A GIS-aided resource estimation of coalfields in Kangal basin, Sivas province, Turkey

B. A. Mert

Volume 9, Issue 3 , July 2018, Pages 581-591


  This paper presents the procedures used for determining and defining the tonnage and grade of the coalfields of Kangal basin from the developed GIS-aided block model. In this work, firstly, all the lithological logs of drill holes and chemical analysis data of core in the basin were analyzed with the ...  Read More

Case Study Rock Mechanics
Numerical modelling of the underground roadways in coal mines– uncertainties caused by use of empirical-based downgrading methods and in situ stresses

M. Zoorabadi

Volume 9, Issue 3 , July 2018, Pages 593-604


  Numerical modelling techniques are not new for mining industry and civil engineering projects anymore. These techniques have been widely used for rock engineering problems such as stability analysis and support design of roadways and tunnels, caving and subsidence prediction, and stability analysis of ...  Read More

Case Study Exploitation
Determination and assessment of coal bed methane potential using rock engineering systems

K. Ghanbari; M. Ataei; F. Sereshki; A. Saffari

Volume 9, Issue 3 , July 2018, Pages 605-621


  The presence of methane in coal mines is one of the major problems in underground coal mines. Every year, in underground coal mines, a lot of casualties due to outbursts and explosions of methane gas is occurring. Existence of this gas in the mines not only creates a difficult and dangerous situation ...  Read More

Case Study Exploitation
Fundamentals of 3D modelling and resource estimation in coal mining

B. Unver

Volume 9, Issue 3 , July 2018, Pages 623-639


  The prerequisite of maintaining an efficient and safe mining operation is the proper design of a mine by considering all aspects. The first step in a coal mine design is a realistic geometrical modelling of the coal seam(s). The structural features such as faults and folding must be reliably implemented ...  Read More

Review Paper Mineral Processing
Distribution of trace elements in coal and coal fly ash and their recovery with mineral processing practices: A review

I. Kursun Unver; M. Terzi

Volume 9, Issue 3 , July 2018, Pages 641-655


  Today coal is among the most important energy sources. In order to meet the world's energy demands, low-calorie lignite with a high ash content is generally used in the large capacity coal-fired thermal power plants. As a result of coal firing, wastes such as fly ash, slag, and flue gas are also produced. ...  Read More

Case Study Mineral Processing
Desulfurization of coal by HNO3 leaching: Optimization of influential factors using Box-Behnken design

S. Shahraki; M. Karamoozian; A. Azizi

Volume 9, Issue 3 , July 2018, Pages 657-665


  Sulfur is one of the most significant impurities in coal, which reduces the quality of coal and also results in environmental pollution. This work was aimed to investigate the removal of sulfur from coal by the leaching method employing parameters expected to affect the removal rate such as acid concentration ...  Read More

Case Study Exploitation
Estimation of coal seams gas content for evaluating potential use of methane drainage system in Tabas coal mine

M. Mohtasham Seyfi; J. Khademi Hamidi; M. Monjezi; A. Hosseini

Volume 9, Issue 3 , July 2018, Pages 667-677


  Methane gas emission, accumulation, and explosion are the most important risk factors in underground coal mines. Hence, having a knowledge of methane gas emission potential in underground coal mines is of crucial importance in preventing the explosion risk, loss of life, and property, and providing miners' ...  Read More

Review Paper Mineral Processing
A review of simultaneous ultrasound-assisted coal flotation

S. G. Ozkan

Volume 9, Issue 3 , July 2018, Pages 679-689


  Ultrasound can be used both simultaneously or as a pretreatment technique for flotation to produce higher combustible recoveries, higher heat values, and lower ash data from raw hard coals. The recent research works have indicated that modifying coal surfaces, especially physical surface cleaning with ...  Read More

Case Study 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


  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

Case Study Rock Mechanics
Innovative approach to strata reinforcement in coal mines with reference to evaluation cable bolts shear strength

N. Aziz; A. Mirzaghorbanali; G. Yang; S. Khaleghparast; H. Resekh

Volume 9, Issue 3 , July 2018, Pages 703-715


  There is an increasing need to determine accurately the strength properties of tendons for an effective ground control on mines and underground structures as well as on modelling simulations. The strength properties of cables, used as cable bolts, have been evaluated mainly by their ultimate tensile ...  Read More

Case Study Exploitation
Prediction of the main caving span in longwall mining using fuzzy MCDM technique and statistical method

S. Mohammadi; M. Ataei; R. Khaloo Kakaie; A. Mirzaghorbanali

Volume 9, Issue 3 , July 2018, Pages 717-726


  Immediate roof caving in longwall mining is a complex dynamic process, and it is the core of numerous issues and challenges in this method. Hence, a reliable prediction of the strata behavior and its caving potential is imperative in the planning stage of a longwall project. The span of the main caving ...  Read More

Original Research Paper Rock Mechanics
A three dimensional geometrical model for calculation of induced stresses surrounding longwall working

H. Mohammadi; H. Darbani

Volume 9, Issue 3 , July 2018, Pages 727-740


  There are various criteria that need to be examined alongside each other when designing a longwall mining system. Challenges such as determination of the supported roof width, support system design, caving height determination, lateral or chain pillar size determination, and optimum support design for ...  Read More

Case Study Exploitation
Application of VENTSIM 3D and mathematical programming to optimize underground mine ventilation network: A case study

S. Maleki; F. Sotoudeh; F. Sereshki

Volume 9, Issue 3 , July 2018, Pages 741-752


  Ventilation is a vital component of an underground mining operation, used to guarantee a safe atmosphere for workers and survive them from the hazardous and toxic gases. In the recent years, engineers have begun to apply new operation research techniques in order to optimize the ventilation systems to ...  Read More

Case Study Exploitation
Comparing ordinary kriging and advanced inverse distance squared methods based on estimating coal deposits; case study: East-Parvadeh deposit, central Iran

P. Afzal

Volume 9, Issue 3 , July 2018, Pages 753-760


  Finding a proper estimation method for ore resources/reserves is important in mining engineering. The aim of this work is to compare the Ordinary Kriging (OK) and Advanced Inverse Distance Squared (AIDS) methods based on the correlation between the raw and estimated data in the East-Parvadeh coal deposit, ...  Read More

Research Note Exploitation
Estimation of reliability-based maintenance time intervals of Load-Haul-Dumper in an underground coal mine

J. Balaraju; M. Govinda Raj; C.H.S.N. Murthy

Volume 9, Issue 3 , July 2018, Pages 761-770


  Reliability estimation plays a significant role in the performance assessment of mining equipment, and aids in designing efficient and effective preventive maintenance strategies. Continuous and random/irregular occurrence of failures in a system could be the main cause for performance drop of machinery. ...  Read More

Case Study Rock Mechanics
Deformation mechanism and optimum design for large cross-sectional longwall installation roadway under compound roof

H.C. ZHAO; H.J. An; M.S. Gao

Volume 9, Issue 3 , July 2018, Pages 771-784


  Both the deformation characters and the failure mode of the large cross-sectional longwall installation roadway under compound roof are becoming an emergent issue than ever before due to the rapid development of modern mining equipment. Various engineering applications have revealed that the insufficient ...  Read More