斯科钦斯基矿业研究所与白俄罗斯钾盐联合公司联合研究和应用了松软岩层的机械加固法。加固巷道顶板的新方法是钻凿上向孔并将金属螺杆拧入其中,螺杆特殊螺纹的外径稍大于钻孔。螺杆挤入有一定深度的钻孔内,在钻眼全长上与孔壁岩石牢固咬合,保证加固的岩层内无分层剥离现象。为加固软 Schokinsky Institute of Mining and the Belarusian potash joint joint research and application of soft rock mechanical strengthening method. A new way to reinforce the roof of a roadway is to drill the uphole and screw the metal screw slightly larger than the drilled hole. Screw into a certain depth of the drill hole in the entire length of the hole wall rock bite with the hole wall to ensure that the stratified stripping reinforced stripping phenomenon. To strengthen the soft