Experimental device and method for detecting distribution status of coal fissures around drill holes
A technology of crack distribution and experimental equipment, which is applied in the direction of measuring equipment, suspension and porous material analysis, analytical materials, etc., to achieve the effect of efficient drilling sealing technology
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[0031] The chassis 6 and the cylinder 3 are directly threaded; the prepared coal sample 5 is directly put into the cylinder 3; A concave space consistent with the cross-sectional size of the pressure transmission shaft 2 is reserved on the surface of the shaft 2 for easy insertion.
[0032] By starting the pressurization system 1, the coal sample 5 can be pressed into a cylindrical coal sample with a certain strength.
[0033] The pressurization system 1, the pressure transmission shaft 2 and the disk 4 are removed; the hollow disk 11 and the cylinder 3 are connected by threads, and the handle of the hollow disk 11 is rotated to compress and fix the coal sample 5.
[0034] Through the central hole of the hollow disk 11, the coal sample drilling 13 can be constructed by using the drilling tool 7.
[0035] After the drilling construction is completed, pull out the drilling tool 7 and clean the cinder in the hole; the rubber hose 9 is connected with the grouting pump 8 and the h...
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