Rational position and control technique of roadway driving along next goaf in fully mechanized top coal caving face
Abstract：By using of theoretical analysis method, the structural mechanical model of roadway driving along next goal was established, and the width expression of internal stress fields was derived, the rational position of roadway driving along next goaf was determined and the deformation of the surrounding rock was also calculated. Meanwhile, the pa- rameter of roadway was given. At last, the control technology of roadway driving along next goaf in thick seam was put forward, and the first is high strength and pretension bolt supporting to control roof,the second is decreasing bolt inter- val of roadway gob-side, the last is secondary supporting to the integrated coal side of roadway, based on this, the bolt supporting parameter was determined by system information design method, and it is successfully applied to engineer- ing practile.
Keywords：fully mechanized top cavingroadway driving along next goafasymmetric control technologysecondarysupportingsystem information design method
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1564-1569 )