Multiple Tectonic Zone In Coal Roadway Grouting Reinforcement Mechanism And Key Technology Research

The geological conditions of coal enterprises will encounter a variety in coalproduction,and thegeological conditions of complex structure has seriously affectedthe safety production of mine roadway excavation and coal mine.In thispaper,Yunjialing coal mine12113working face side lane as the background,on thebasis of the analysis ofdeformation characteristics,traits and influence factors of coalroadway multiple tectonic zone,through the FLAC3D numerical simulation on theeffect of different geological structure on the stability of surrounding rock ofroadway,deformation and failure law of surrounding rock of roadway,the analysis ofthe stress field change.Fundamentally grasp the deformation characteristics ofsurrounding rock of roadway,and provide basic data for the design of reinforcementscheme;through theoretical analysis of complex coal roadway under complex stressdeformation mechanism,and provide a theoretical basis for the control of roadwaysurrounding rock stress conditions.Mechanism of supporting the united body of boltgrouting strengthening system analysis,discusses the mechanism of bolting andgrouting reinforcement joint reinforcement technology of soft rock roadway; throughlaboratory experiments,determining the grouting effect on surrounding rockproperties from macroscopic and microscopic angle;through the engineeringpractice,the effect of roadway support for monitoring and evaluation.Mechanism of supporting the united body of bolt grouting strengthening systemanalysis,discusses the mechanism of bolting and grouting reinforcement jointreinforcement technology of soft rock roadway;through laboratory experiments,determining the grouting effect on surrounding rock properties from macroscopicand microscopic angle; through the engineering practice,the effect of roadwaysupport for monitoring and evaluation.