Consideration of the Method of Borehole Hydraulic Mining in Relation to Gold-Bearing Placer Deposits of Yakutia

The purpose of the study was a detailed study of the applicability of the use of the method of borehole hydro mining in placer gold deposits, in conditions of the spread of permafrost soils. The main idea of the work was to consider a well-known, little-used, environmentally safe and economically profitable method of developing placer gold deposits. The method is based on the extraction of minerals not by open and underground mining, but with the help of wells. Laboratory studies of the study of this technical solution were carried out on the basis of the Technical Institute (branch) North-Eastern Federal University named after M.K. Ammosov in Neryungri, field experiments on one of the placer deposits of the Iengra River of the Neryungri district. Monitoring of mining operations at each stage is carried out with the help of a software and hardware complex, various measuring instruments and materials, sensors and other materials. Measuring instruments recorded and monitored the frequency of experimental studies according to certain set and obtained parameters, then the data were processed using software. This article presents some results achieved with the help of laboratory and real conditions of experimental reality. Based on the results of the work, the conclusions of the conducted research and the further expediency of further study of the process are made. The methods of conducting the experimental part are described.