FIELD: measuring.
SUBSTANCE: invention relates to geophysical methods for diagnostics and monitoring of rock destruction and can be used in ore and non-ore deposits for survey and location of formed discontinuities. For reliability and accuracy of determination of the location of acoustic emission sources, an additional amount of sensors are used in the antenna, wherein at least three of said sensors are receiving-emitting sensors, wherein the exact coordinates of the receiving-emitting sensors are determined relative to a reference point in the rock mass. Additionally, the receiving-emitting sensors are used to alternately emit an acoustic signal into the rock mass and the signal is received by all sensors not tied to the reference point, while measuring the time of propagation of the acoustic signal between the sensors. The acoustic coordinates of the sensors not tied to the reference point are determined according to the measured time of propagation of the acoustic signal between the sensors, considering the characteristics of propagation of the acoustic signal, and the location of the acoustic emission sources is calculated using the known formulas, considering the found values of the coordinates of the receiving-emitting sensors and sensors not tied to the reference point.
EFFECT: increased reliability and accuracy of determination of the location of acoustic emission sources in rock mass.
1 cl, 2 dwg
Authors
Dates
2021-08-12—Published
2020-03-26—Filed