FIELD: mining.
SUBSTANCE: method of determining the gas recovery of the mined seam in the stopping face is proposed, which consists in measuring the volumes of coal extracted by the miner and the intensity of methane release in the face area of the stopping face, determining the connection between the measured values and determining the value of gas recovery of the seam in the stopping face of the stopping face. At that the volume of coal excavated, and the intensity of methane release are measured at the site of the seam outside the area of its natural degassing with the mounting chamber and up to the first placing the main roof. The data of volume of coal excavated, which excess their average values during the observation period are used. The value of gas recovery of the seam in the stopping face is determined by the value of the coefficient of the amount of coal excavated in identified relationship between the values measured in the process of combine operation on coal drawing.
EFFECT: improvement of accuracy of determining the gas recovery of the mined seam.
