袁庄矿Ⅳ1专用回风道高强控制对策研究

ccording to difficult problems of the support of YuanZhuang Mine's IV1 ventilation roadway in HuaiBei Coal Mining Corporations, through the analysis of the instability mechanism and the actual situations of roadway surrounding rock, combined with numerical simulation analysis, We put forward the high strength stable coupling support scheme. Through using the bolt-grouting reinforcement technology to improve the integrity of the engineering rock mass and make supports and surrounding rock coupled, we make supports and surrounding rock bearing together, giving fully play to the bearing capacity of supports. Improve the stability of the U29 steel supports through the compensation of anchor cable at roadway side and shoulder. At the same time, ensure the effective use section of Ⅳ1 special back to duct through using high strength of the control measures to control bottom strongly bursting on. Through monitoring the field, we found that the roadway deformation was effectively controlled. So we concluded that the high strength stable coupling support technology finally achieved to support roadway reasonably under the influence of high ground stress.