METHOD TO PREDICT OUTBURST HAZARD OF DEVELOPMENT DRIFTS

摘要

FIELD: mining.;SUBSTANCE: method consists in detection of mining operations performance depth from surface, section of a mine by coal, pressure of gas in an untouched bed massif, coefficient of weighted average coal strength in a bed, coal adhesion, stress in a coal massif along a face line and area of coal massif unloading in front of the face. The specified data is substituted into a mathematical formula, with the help of which prediction of outburst hazard of a development drift R is made. If R0, the bed is related to outburst hazardous, and if R0 - to safe regarding coal and gas outbursts.;EFFECT: possibility to apply the method both when tunnelling and at the design stage due to use of technical characteristics of mines carried out under similar conditions or being at the stage of design solutions.;1 dwg