Analysis and Improvement of Gob-Side Entry Retaining Support Technology in Guizhou
In view of the serious deformation and failure of the roof of the upper side and the bottom corner of the lower side under the original support conditions of a gob-side entry retaining in a coal mine in Guizhou,measures are taken to improve the roadway support mode.The numerical simulation software is used to analyze the deformation and failure of roadway surrounding rock after improving the support.It is found that the broken condition of roadway surrounding rock is obviously strengthened under the improved support,which can better block the serious deformation and damage of the roof rock on the upper side of roadway and the bottom angle of the lower side,so as to maintain the integrity and stability of roadway surrounding rock.The research can provide reference for the support of gob-side entry retaining under similar conditions.
gob-side entry retainingsurrounding rock deformation and failurenumerical simulationsupport improvement
万方数据
维普
