FIELD: mining.
SUBSTANCE: method involves drilling wells and holes in underground mines. A measuring set with a video endoscope fixed at its end and a perspective ruler fixed at a distance of the wide-angle visual angle of the video vision of the video endoscope is inserted into the well. The exact position of the cracks is determined by the depth of the well and its approximate width, the location of the cracks found in the well is fixed along the length of the rod, and the video endoscope and the prospective ruler determine their approximate width, fix them in the observation log, cracks are classified by width. For each class, a measuring cone-probe with a certain step of the measuring rifled steps and their diameter is selected. Cone-probe, anchored on the rod, is injected into the mouth of the measured crack and on the diameter of the steps and their number, depth move hidden areas in rift, define the breadth and depth of its disclosure. Repeated cycles of measurements are carried out according to the classification of previously measured cracks and from the changes in crack opening width determine the dynamics of rock mass deformation processes. The device contains a measuring probe, made in the form of a removable cone-probe, in which completed mounting hole for fastening to the typesetting of the measuring rod, and by forming a cone cut measuring steps, the rod is a rod set with elements of articulation with each other. Measuring steps threaded cone-probe performed with step on its axis in ascending order from h=0.5 mm, with diameters from stages d=1 mm in width measured cracks. At the end of the set of rods, a video endoscope is installed, and a perspective ruler is attached at a distance of the wide-angle visual angle of the video endoscope capture.
EFFECT: increasing the accuracy of measurements.
3 cl, 5 dwg
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Authors
Dates
2017-07-06—Published
2016-03-01—Filed