METHODS FOR ASSESSING THE DANGER OF UNDERGROUND VOIDS AND WAYS TO EXTINGUISH THEM

Abstract

The subject of the research is methods for determining the danger of underground voids and ways to eliminate them. In this work, the purpose of the study is to assess the degree of danger of underground voids formed during ore mining and, based on the nature of collapses of the roof rocks of mined-out spaces, to select the most optimal and safe way to extinguish them. Also an analysis of known works on assessing the degree of danger in mines and their applicability in specific mining and geological conditions. Research method: generalized analysis of methods for assessing the danger of accumulated volumes of underground mined-out spaces in mines. Scientific novelty: depending on the variants of underground mining systems used, it is possible to assess the danger of underground voids and select the type of insulating structures based on the speed of air flow in the approach workings, and also, depending on the speed of the ejected air, selectively determine the degree of danger of each excavation unit. Practical recommendations: individual results of scientific research are recommended to be used by designers and engineering and technical personnel of mines when choosing the optimal and safe method of controlling rock pressure during underground mining of solid mineral deposits.