VIDEO MONITORING OF THE STATE OF CHAMBERS AND PILLARS WHEN DEVELOPING RESERVES BY THE TECHNOLOGY OF DEEP DEVELOPMENT OF COAL SEAMS
The complex of deep development of formations (KGRP) refers to the deserted mining of reserves and has a number of features that complicate the mining process, the main of which include: lack of visual monitoring of the condition of the chambers and pillars; the need to leave protective packs of coal with unstable rocks of the roof; defective chambers to design parameters due to premature collapse of the roof, destruction of inter-chamber pillars and the influx of water into the chambers; clamping of the cutting organ and the retractable stance due to collapse of an unaccounted false roof or local disturbance. Over the many years of experience in developing reserves using the fracturing technology KGRP in Kuzbass, the above complicating factors were tried to be controlled by various methods. The Siberian Institute of Geotechnical Research has begun to develop a method for visual monitoring of the state of extraction chambers during their development, namely, a new, remote video method for assessing the state of chambers for uninhabited reserves development using deep drilling technology has been introduced. The possibility of visual inspection of the state of interchamber pillars, the stability of the roof of the chamber, soil heaving, as well as the manifestation of these processes in time, have been revealed. The processes occurring during trimming of the protective pack of coal in the roof and soil of the formation, as well as the presence of local inclusions of rock layers are recorded. Establishing dependencies on all of the above factors will allow you to quickly make adjustments to the parameters of the fracturing technology KGRP, improve the quality of extracted products and the completeness of reserves