Computational fluid dynamics simulations for investigation of parameters affecting goaf gas distribution
1. Computational fluid dynamics simulations for investigation of parameters affecting goaf gas distribution

K.M. Tanguturi; R.S. Balusu

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

Abstract
  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) ...  Read More
XRF analysis of coal bioleaching by chemolithoheterotrophic Alicyclobacillus HRM5 and chemolithoautotrophic Acidithiobacillus ferrooxidans
2. XRF analysis of coal bioleaching by chemolithoheterotrophic Alicyclobacillus HRM5 and chemolithoautotrophic Acidithiobacillus ferrooxidans

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

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

Abstract
  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 ...  Read More
Structural analysis of impacting factors of sustainable development in underground coal mining using DEMATEL method
3. 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 , Summer 2018, Pages 567-579

Abstract
  Mining can become more sustainable by developing and integrating economic, environmental, and social components. Among the mining industries, coal mining requires paying a serious ...  Read More
A GIS-aided resource estimation of coalfields in Kangal basin, Sivas province, Turkey
4. A GIS-aided resource estimation of coalfields in Kangal basin, Sivas province, Turkey

B. A. Mert

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

Abstract
  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, ...  Read More
Numerical modelling of the underground roadways in coal mines– uncertainties caused by use of empirical-based downgrading methods and in situ stresses
5. 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 , Summer 2018, Pages 593-604

Abstract
  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 ...  Read More
Determination and assessment of coal bed methane potential using rock engineering systems
6. Determination and assessment of coal bed methane potential using rock engineering systems

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

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

Abstract
  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 ...  Read More
Fundamentals of 3D modelling and resource estimation in coal mining
7. Fundamentals of 3D modelling and resource estimation in coal mining

B. Unver

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

Abstract
  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 ...  Read More
Distribution of trace elements in coal and coal fly ash and their recovery with mineral processing practices: A review
8. 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 , Summer 2018, Pages 641-655

Abstract
  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 ...  Read More
Desulfurization of coal by HNO3 leaching: Optimization of influential factors using Box-Behnken design
9. Desulfurization of coal by HNO3 leaching: Optimization of influential factors using Box-Behnken design

S. Shahraki; M. Karamoozian; A. Azizi

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

Abstract
  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 ...  Read More
Estimation of coal seams gas content for evaluating potential use of methane drainage system in Tabas coal mine
10. 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 , Summer 2018, Pages 667-677

Abstract
  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 ...  Read More
A review of simultaneous ultrasound-assisted coal flotation
11. A review of simultaneous ultrasound-assisted coal flotation

S. G. Ozkan

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

Abstract
  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 ...  Read More
Improvement of coal mine roof rating classification using fuzzy type-2
12. Improvement of coal mine roof rating classification using fuzzy type-2

R. Rafiee; A. Azarfar

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

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 ...  Read More
Innovative approach to strata reinforcement in coal mines with reference to evaluation cable bolts shear strength
13. 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 , Summer 2018, Pages 703-715

Abstract
  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. ...  Read More
Prediction of the main caving span in longwall mining using fuzzy MCDM technique and statistical method
14. 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 , Summer 2018, Pages 717-726

Abstract
  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 ...  Read More
A three dimensional geometrical model for calculation of induced stresses surrounding longwall working
15. A three dimensional geometrical model for calculation of induced stresses surrounding longwall working

H. Mohammadi; H. Darbani

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

Abstract
  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 ...  Read More
Application of VENTSIM 3D and mathematical programming to optimize underground mine ventilation network: A case study
16. 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 , Summer 2018, Pages 741-752

Abstract
  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 ...  Read More
Comparing ordinary kriging and advanced inverse distance squared methods based on estimating coal deposits; case study: East-Parvadeh deposit, central Iran
17. 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 , Summer 2018, Pages 753-760

Abstract
  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 ...  Read More
Estimation of reliability-based maintenance time intervals of Load-Haul-Dumper in an underground coal mine
18. 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 , Summer 2018, Pages 761-770

Abstract
  Reliability estimation plays a significant role in the performance assessment of mining equipment, and aids in designing efficient and effective preventive maintenance strategies. Continuous ...  Read More
Deformation mechanism and optimum design for large cross-sectional longwall installation roadway under compound roof
19. 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 , Summer 2018, Pages 771-784

Abstract
  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 ...  Read More