With regard to the mechanism of electromagnetic radiation (EMR) excited by deformation and failure of coal and rock, the present study employed the optical microscope, digital microhardness tester and atomic force microscopy (AFM) to measure surface morphology, surface microhardness and electro-mechanical characteristics, including elastic modulus and surface potential of coal. The results show that micro-mineral composition and micro-mechanical properties of coal are clearly heterogeneous. The elastic modulus values measured are 62.3 MPa-4.0 GPa and the surface potential values tested are 21.2-166.2 mV. The proportion distributions of the two parameters mentioned follow the normal distribution, which indicates the electro-mechanical charac...
Copyright © 2018 ARMA, American Rock Mechanics Association. Fully understand the microstructures and...
A coal-rock uniaxial compression experimental investigation was conducted in laboratory. Electromagn...
This study aims to analyse physical and chemical changes in hard coal samples under the influence of...
The outbursts of coal and gas is one of the main coal mining hazards, therefore, for the coal mining...
© 2018 Elsevier B.V. Microstructures and geomechanical properties are of key importance in coal mini...
Characterization of coal micro-structure and the associated rock mechanical properties are of key im...
AbstractThe mechanical characteristics and electromagnetic emission rules during the uniaxial compre...
Geomechanical properties are of great importance in coal mining exploration, (enhanced) coal bed met...
For a long time, coalbed gas has brought about various problems to the safety of coal mine productio...
© 2018 Elsevier Ltd Rock mechanical properties are of key importance in coal mining exploration, coa...
Acknowledgements This research was funded by the National Natural Science Foundation of China (grant...
AbstractThis study aims at identifying the microfractures characteristics and their significances to...
Coal bed methane production can be assisted by CO2 injection. However, CO2 adsorption in the coal ma...
This study aims to analyse physical and chemical changes in hard coal samples under the ...
This paper discusses special features of mechanical behaviour of coals discovered using depth-sensin...
Copyright © 2018 ARMA, American Rock Mechanics Association. Fully understand the microstructures and...
A coal-rock uniaxial compression experimental investigation was conducted in laboratory. Electromagn...
This study aims to analyse physical and chemical changes in hard coal samples under the influence of...
The outbursts of coal and gas is one of the main coal mining hazards, therefore, for the coal mining...
© 2018 Elsevier B.V. Microstructures and geomechanical properties are of key importance in coal mini...
Characterization of coal micro-structure and the associated rock mechanical properties are of key im...
AbstractThe mechanical characteristics and electromagnetic emission rules during the uniaxial compre...
Geomechanical properties are of great importance in coal mining exploration, (enhanced) coal bed met...
For a long time, coalbed gas has brought about various problems to the safety of coal mine productio...
© 2018 Elsevier Ltd Rock mechanical properties are of key importance in coal mining exploration, coa...
Acknowledgements This research was funded by the National Natural Science Foundation of China (grant...
AbstractThis study aims at identifying the microfractures characteristics and their significances to...
Coal bed methane production can be assisted by CO2 injection. However, CO2 adsorption in the coal ma...
This study aims to analyse physical and chemical changes in hard coal samples under the ...
This paper discusses special features of mechanical behaviour of coals discovered using depth-sensin...
Copyright © 2018 ARMA, American Rock Mechanics Association. Fully understand the microstructures and...
A coal-rock uniaxial compression experimental investigation was conducted in laboratory. Electromagn...
This study aims to analyse physical and chemical changes in hard coal samples under the influence of...