| 摘要 |
A method for control and diagnostics of state of rocks round a working includes drilling holes for placement of probe in rock massif, generation of electromagnetic oscillations, measurement of frequency of those and evaluation of parameters of fracturing by means of electro-capacitive sensor and measuring instrument. At the working special observation stations are equipped, those comprise drill holes and measuring probes placed to the holes by the whole lengths of those with gaps for pressing devices, by means of the last ones the probe is pressed to the rock surface of the hole, with determination of diameters of the holes at each measurement. The ends of the connecting wires through openings in the tube are brought inside it, with connection through switching unit to generator of oscillations and measuring instrument that is connected to the tube at the mouth and transforms electromagnetic oscillations to digital electric signal, with transfer of real-time data by communication channels to the information receiving point. According to that information crack opening is estimated for each sensor, with determination of the fracture porosity of rocks, its distribution round the working is represented as a space-time function. |
