Research On Pillar Stability Analysis And Mining Road Support Technique Of Fully Mechanized Coal Face In Suancigou Mine

NO.6up105-1 coal face and NO.6up103-2 are adjacent in Suancigou Mine, 30 meters pillar between them. Inorder to ensure NO.6up105-1 coal face to be mined smoothly, Target to achieve high productivity and efficiency of mine, it,s essential to research on the pillr's stability between and mining roadway support, make sure NO.6up105-1 coal face can be mined smoothly.Based on surveying and analyzing geology condition in Suancigou Mine, detect losing circle of mining road and explore rock stratum structure in NO.6up105-1 coal face, and use coal & rock mechnical parameters and geology stress survey result of Suancigou Mine . Apply these methods to research mining gate road surrounding control, such as theoretical analysis, geology analysis, numerical calculation and so on.Analyze engineering geological condition at mining area, conform basic engineering geological environment of coal and rock at mining area. analyze geology stress condition; apply surrounding rock losing circle and surrounding rock structure detection to find out the losing circle range and state of mining road surrounding. Analyze the distribution law of abutment around stope and its effect range, to supply basic parameters and theoretical basis to bolts support design of road. Calculate pillar width by the theory method, analyze abutment stress and elastic & plastic deformation zone's distribution, determine pillar width. Apply theoretical calculation and engineering analog methods, initiate feasible support plans, analyze support effect of each plan, determine bolts support parameters of mining road, prensent monitor plan of roadway pressure and pillar stress.