Registration of Submicron Particle Emission for Rock Burst Prediction

In recent years the research into the processes of deformation and disintegration of materials at a submicron level has acquired greater importance for different areas of science. Mineral mining at different stages of production is associated with the formation of particles differing in size, including a submicron size range that has a negative environmental effect. However, as it has been proved by laboratory research practice, this effect can be used for rock stress-strained state monitoring both under quasi-static and dynamic types of load. In this work the emphasis is made on the fact that the formation of submicron particles at mechanical loading of rock can be used for its geotechnical monitoring. A new method has been developed for the assessment of the variation of a rock sample stress-strained state implying the registration of the formation of submicron particles from its surface under uniaxial compression. The research results are of scientific and practical interest for solid body disintegration, for rock in particular, and can be used for the development of a new method of virgin rock stress-strained monitoring, registration of dynamic forms of rock pressure occurrence to predict rock burst. (paper)