Sudden outbursts of coal and gas from the seam, as well as gas and rocks from the coal-bearing strata significantly complicate the conditions of mining and tunneling operations. At present, when the increase in the depth of mines is inevitable, improving the efficiency of predicting emissions and appropriate preventive measures becomes one of the most important tasks in the coal mining industry.
In underground mining, predicting the condition and behavior of the roof is of interest. One of the informative parameters of the roof condition is its sound conductivity ...
