ABSTRACT
The underground gas storage cavern development in salt is impossible without knowledge of physical and mechanical properties of rock at the stage of designing and without an evaluation of the rock massif condition around storage at the stage of operation. In designed work the use of the computer analysis of the acoustic emission (AE) signals for recognition of the salt stress-strain stages is considered. The main attention in this analysis is given on amplitude-time parameters of the initial part of signals. The Byes criterion was used for the recognition. The obtained outcomes have allowed determining the loss ratio the minimum of the recognition error. The dependence of the correct deformation stage recognition probability on an number of AE signal informative parameter is established. It is shown that the correct recognition probability 0.95−0.97 is reached on price relation 0.1 and parameters number equal 12−13 and more.
