Research on gob-side entry retaining technology of roof cutting and pressure relief in shallow buried thin coal seam working face
MA Jinyuan
Abstract：In this paper,the engineering background of Hongxiang Coal mine in shallow and thin coal seam is to keep roadway along goaf with cutting top and unloading pressure.In order to solve the problem of difficult control of surrounding rock along goaf of shallow and thin coal seam working face.Combined with the panoramic borehole imaging results of the structure characteristics of the roof sur-rounding rock of 91211 roadway,a reasonable technical scheme of pre-split-blasting for top cutting and pressure relief was proposed.Combined with the law of mining pressure appearance of 91306 working face,a specific reasonable zoning and surrounding rock control scheme of 91211 roadway was proposed,and field tests and mine pressure monitoring were carried out.The engineering application effect of the relevant technical scheme was tested and evaluated.Finally,the top cutting and pressure relief technology was successfully implemented in the 91211 roadway of Hongxiang Coal mine,ensu-ring the safe and efficient production of 91306 and 91308 working faces.
Keywords：shallow and thin coal seamroof cutting pressure reliefgob-side entry retainingeffect mo-nitoring
Publication Date：2025-04-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 20-26 )