Distribution of mechanical stress and its relationship to the natural pulsing electromagnetic field in complex rock masses

The solution of the problem of mechanical stress distribution in a complexly built environment of rocks disturbed by the presence of mining chambers in the formations of potassium salt is demonstrated on the example of the Kalush-Holin deposit in Pre-Carpathians. The reliability of the calculations is confirmed by comparing the results with laboratory data for salt and saline rocks in uniaxial compression and tension. By the example of comparing the results of model experiments in relation to stress calculations and practical investigations by the method of the Natural Pulsing Electromagnetic Field of the Earth (NPEMFE), the connection and identity of the anomalies are proved. This makes it possible to use the results to create a theoretical basis for quantitative interpretation of the NPEMFE method.