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International Journal of Coal Science and Technology Volume 15 Issue 3

Subject Areas: Geotechnical Engineering and Engineering Geology; ;
Publisher: China Coal Society - Springer Journals
ISSN: 1006-9097
SJR: 31

LitStream

Journal Article

CFD modelling of longwall goaf gas flow to improve gas capture and prevent goaf self-heating

Ren, Ting-xiang

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0301-8

CFD models have been developed to investigate the longwall goaf gas flow patterns under different mining and geological control conditions. The longwall goaf was treated as porous regions and gas flow was modelled as a momentum sink added to the momentum equation. Gas desorption from the caved...
LitStream

Journal Article

Gas and rock-bump hazard monitoring in the Polish mining

Isakow, Zbigniew; Krzystanek, Zdzisław; Trenczek, Stanisław; Wojtas, Piotr

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0302-7

Described the main environmental hazards occurring in Polish underground mines and their continuous growth in recent years as well as equipment and systems which were used for monitoring mine air parameters and geodynamic phenomena. The latest versions of environmental hazard monitoring systems,...
LitStream

Journal Article

Study on regional stratagem for coal mine disasters control and prevention in China

Shen, Bao-hong; Lei, Yi

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0303-6

The regional strategy study was aimed at coal mine disaster control and prevention, which deepens and enriches the macro-strategy of coal mine disaster control and prevention, and provides an important support for the rapid and healthy development of the regional coal industry. The country was...
LitStream

Journal Article

Theoretical analysis of characteristics of acoustic emission in rock failure based on statistical damage mechanics

Wen, Guang-cai; Yang, Hui-ming; Zou, Yin-hui

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0304-5

Based on statistical damage mechanics, the constitutive model of a rock under three-dimensional stress was established by the law that the statistical strength of rock micro-element obeys Weibull distribution. The acoustic emission (AE) evolution model of rock failure was put forward according to...
LitStream

Journal Article

Indication to distinguish the burst region of coal gas from seismic data

Cheng, Jian-yuan; Tang, Hong-wei; Xu, Lin; Li, Yan-fang

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0305-4

The velocity of an over-burst coal seam is about 1/3 compared to a normal coal seam based on laboratory test results. This can be considered as a basis to confirm the area of coal and gas burst by seismic exploration technique. Similarly, the simulation result of the theoretical seismic model...
LitStream

Journal Article

A triaxial creep model for coal containing gas and its stability analysis

Yin, Guang-zhi; Wang, Deng-ke; Huang, Gun; Zhang, Dong-ming; Wang, Wei-zhong

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0306-3

Triaxial creep tests on CCG specimens were systematically performed using a self-made creep seepage experimental apparatus for determining the creep law of CCG. An improved triaxial creep model of CCG was established on the basis of a Nishihara model and another visco-elasto-plastic model,...
LitStream

Journal Article

Research on inversion high mining pressure distribution and technology of preventing dynamic disasters by MS monitoring in longwall face

Cheng, Yun-hai; Jiang, Fu-xing; Zou, Yin-hui

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0307-2

Under two rock strata combination conditions, over 10,000 microseismic events were received with microseismic location monitoring technology which possessed by the author’s studying team, used in fully mechanized coal face of Huafeng Mine of Xinwen Coal Mining Group Co., Shandong Province. On the...
LitStream

Journal Article

Roadway dynamic response analysis under mining rockburst condition

Li, Chun-rui; Qi, Qing-xin; Pan, Jun-feng; Lan, Hang

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0308-1

In order to determine how a roadway withstands a momentum wave and determine the extent of damage to rock surrounding the roadway under different force wave peak impacts, the roadway dynamic response state was analysed using numerical simulation method. The roadway’s critical peak force wave and...
LitStream

Journal Article

Experiment study on the propagation laws of gas and coal dust explosion in coal mine

Si, Rong-jun; Li, Run-zhi; Wang, Lei; Wu, Zi-ke

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0309-0

The experiment of gas and coal dust explosion propagation in a single laneway was carried out in a large experimental roadway that is nearly the same with actual environment and geometry conditions. In the experiment, the time when the gas and coal dust explosion flame reaches test points has a...
LitStream

Journal Article

The control of coal mine gas and coordinated exploitation of coal bed methane in China

Liu, Jian-zhong

2009 Journal of Coal Science and Engineering (China)

doi:10.1007/s12404-009-0310-7

Based on the characteristics of the coalfield geology and the distribution of coal bed methane (CBM) in China, the geological conditions for exploiting the CBM and draining the coal mine gas were analyzed, as well as the characteristics of CBM production. By comparing the current situation of CBM...

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