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International Journal of Coal Science and Technology Volume 6 Issue 3

Subject Areas: Geotechnical Engineering and Engineering Geology; ;
Publisher: Springer Singapore - Springer Journals
ISSN: 2095-8293
SJR: 31

Open Access

Journal Article

Macro/meso failure behavior of surrounding rock in deep roadway and its control technology

Zuo, Jianping; Wang, Jintao; Jiang, Yunqian

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-0259-0

Abstract Engineering disasters occur frequently and violently with the increase in mining depth, which is mostly due to insufficient study on the failure mechanism of the deep rock mass. In this paper, theoretical and experimental researches on the failure behaviors and deformation control of...
Open Access

Journal Article

A review of UAV monitoring in mining areas: current status and future perspectives

Ren, He; Zhao, Yanling; Xiao, Wu; Hu, Zhenqi

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-00264-5

Abstract With the emergence and development of unmanned aerial vehicles (UAVs), different sensors have become more miniaturized and intelligent. UAVs equipped with various sensors are now an important approach for acquiring spatial data. Many advantages, such as low cost, short revisiting cycle,...
Open Access

Journal Article

A 0-dimensional cavity growth submodel for use in reactor models of underground coal gasification

Perkins, Greg

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-00269-0

Abstract Modelling of the underground coal gasification process is dependent upon a range of sub-models. One of the most important is the calculation of the cavity growth rate as a function of various operating conditions and coal properties. While detailed 1-dimensional models of coal block...
Open Access

Journal Article

Organic petrology and geochemistry of Triassic and Jurassic coals of the Tabas Basin, Northeastern/Central Iran

Zamansani, Nazanin; Rajabzadeh, Mohammad Ali; Littke, Ralf; Zieger, Laura; Baniasad, Alireza

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-0260-7

Abstract Jurassic and Triassic coals and organic matter-rich shales of the Tabas Basin, Iran, were investigated with respect to their thermal maturation and petrographic composition. The Triassic coals of the Parvadeh coal field range in vitrinite reflectance between 1.17% and 1.37% and the...
Open Access

Journal Article

Non-parallel double-crack propagation in rock-like materials under uniaxial compression

Pan, Weidong; Wang, Xin; Liu, Qiming; Yuan, Yongkang; Zuo, Baodong

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-0255-4

Abstract Coalescence among fractures would have influence on the stability of rock masses. Deep understanding of mechanical behavior of fractured rock masses is an important mean to identify failure mechanism of geological disaster. In this study, crack propagation processing was studied through...
Open Access

Journal Article

Effects of seasonal air temperature variation on airflow and surrounding rock temperature of mines

Yi, Xin; Ren, Lifeng; Ma, Li; Wei, Gaoming; Yu, Wencong; Deng, Jun; Shu, Chimin

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-00268-1

Abstract In underground mines, high air temperatures in the summer months lead to an increase in inlet airflow temperatures. This leads to seasonal thermal pollution in the mines. This paper examines the dynamics and effects of seasonal variation in surface air temperatures and surrounding rock...
Open Access

Journal Article

Optimization of drill bit replacement time in open-cast coal mines

Ugurlu, Omer Faruk; Kumral, Mustafa

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-0254-5

Abstract To gain a competitive edge within the international and competitive setting of coal markets, coal producers must find new ways of reducing costs. Increasing bench drilling efficiency and performance in open-cast coal mines has the potential to generate savings. Specifically, monitoring,...
Open Access

Journal Article

The creep compaction behavior of crushed mudstones under the step loading in underground mining

Guo, Zhibiao; Wang, Qiong; Yin, Songyang; Kuai, Xiaohui; Yan, Dongshan; Li, Mengyi; Qu, Yandong

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-0243-8

Abstract The crushed rocks are used as a filling material in mined-out areas of underground mining. Compared with the man-made filling materials, the crushed rocks exhibit higher compressibility and lower stability, which may result in instability of surrounding rock and surface subsidence. To...
Open Access

Journal Article

Prediction of face advance rate and determination of the operation efficiency in retreat longwall mining panel using rock engineering system

Aghababaei, Sajjad; Jalalifar, Hossein; Saeedi, Gholamreza

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-0245-6

Abstract A new approach for prediction of face advance rete (FAR) prior to mining operation and determination of the operation efficiency after mining operation in retreat longwall mining panel is presented based upon the concepts of rock engineering system (RES). For this purpose, six longwall...
Open Access

Journal Article

Underground mining slurry transportation viability

Samanta, Binay; Samaddar, Arun Baran

2019 "International Journal of Coal Science & Technology"

doi:10.1007/s40789-019-0257-2

Abstract Underground mining requires lot of water pumping to surface which increases cost. Because of safety, support, ventilation and environment costs underground mines are closing down gradually all over the world. This innovative paper is based on method studies by computer programming with...

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