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Disasters of spontaneous combustion at coalfields are severe in China. The premise of effective control against the disasters is investigations taken for combustion location and scope for spontaneous combustion at coalfields so as to provide scientific basis for flame extinguishment design and construction of coalfields. Working principles, construction methods and detection effects of high resolution...
The principles, methods, technologies and application effects of several electromagnetic methods for the detection of the hidden danger of water gushing at the coal face were introduced. Also, emphasis was laid on expounding the methods, principles and effects of down-hole detections by electric transmission tomography and transient electromagnetic method. The potential of point power supplied in...
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