Abstract:
Based on the situations of serious deformation and damage of 201 coal roadway in Gaojiabao Coal Mine, the characteristics of strata behaviors for surrounding rock in deep high stress coal roadway and the supporting effect of supporting structure are analyzed by means of anchor bolts working resistance monitoring, rock deformation and surrounding rock loose zone as well as combining with the damage of surrounding rock. The control measures of surrounding rock were proposed, and the optimization design of the supporting parameters was established on the basis of monitoring and analysis results, then the validity and rationality of optimization scheme was analyzed through numerical simulation method.