EXPERIMENTAL STUDIES OF THE POSSIBILITY OF USING RADONOMETRY TO IDENTIFY DECAPACITY AREAS IN UNDERWORKED ROCK MASSIF

Abstract

The article presents the results of experimental studies of the possibility of using radonometry to detect and delineate underground mine workings in underworked areas. Ensuring the safety of subsoil use facilities in areas underworked by mining operations requires diagnostics of the geomechanical state of the underlying rock massif – identification of areas of the rock massif that have become recompacted as a result of rock displacement. An effective solution to this problem is the use of geophysical methods. The studies have been carried out to study the possibility of using radonometry to solve the discussed problem. The prerequisites for these studies are the properties of radioactive gas radon and modern concepts of the formation of the geodynamic component of the radon emanation field in the soil air. The zone of rock displacement above the mined-out space is characterized by alternating areas of extension and compression. An emanation survey and studies on separate determination of radon and thoron content in the soil air were carried out on the study area. Maps of geodynamic activity based on radonmetry data, a map of extension deformations and a map of compression extensions were constructed. Analysis of the research results allows us to conclude that further research into the possibility of using radonometry to study underworked areas is promising.