Laboratory method for rapid determination of coal body permeability in front of underground working face of coal mine
A technology of permeability and working surface, which is applied in the fields of permeability/surface area analysis, measuring device, suspension and porous material analysis, etc., and can solve problems such as cumbersome process, poor operating environment, and deviation
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[0040] The present invention provides a method for quickly measuring the permeability of the coal body in front of the working face of a coal mine in the laboratory. The example of rate determination further illustrates the present invention.
[0041] Firstly, the selected experimental hardware of the present invention: the mining stress monitoring system and the true triaxial permeability testing system are explained as follows:
[0042] combine figure 1 As shown, the mining stress monitoring system includes a system host 1, a drilling stress gauge 2, a guide rod 3, a regulator 4 and a stabilized power supply 5, wherein the main function of the system host 1 is to collect monitoring data, and on the other hand, the data Carry out classification, processing, and display the data report with the man-machine dialogue interface; the guide rod 3 is used to send the drilling stress gauge 2 to the preset drilling position, and the drilling stress gauge 2 is connected to the input p...
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