Full Section Of Deep Soft Roadway Excavation Anchor Reinforcement Technology Injection Mechanism And Application Research

Because of the geological environment under complex stress conditions,the surrounding rock forces,deformation and shallow are not the same.Therefore,the mechanism of deformation of deep roadways cannot be explained by the theory of shallow surrounding rocks.Of deep roadway surrounding rock of roadway surrounding rock stability control technology must adapt to the deformation characteristics of roadway surrounding rock for deep strong rheology and vulnerable to disturbance,maintaining long-term stability of the surrounding rock of roadway is very important.At present,although some achievements have been made in the deformation mechanism,characteristics and stability control.of the deep roadway,there is still lack of deep research in some aspects.Based on the engineering background of turbine coal mine of wanbei coal and electricity group,through the field investigation and numerical simulation,industrial test and field monitoring method,key technology to the whole section anchor reinforcement for this paper.Thesis mainly based on the deformation of roadway surrounding rock elastic-plastic mechanics analysis,internal friction Angle,cohesive force,poisson's ratio and elastic modulus of the four main factors affecting the deformation of surrounding rock,for design of orthogonal test,selecting help area shift,floor drum up subsidence,roof and floor as examining index.Using ABAQUS software,the numerical simulation results were obtained and the data was analyzed,the analysis of variance analysis and regression analysis were carried out.Reveals that the deformation of roadway surrounding rock with the change of the surrounding rock mechanics parameters change rule and the influence of mechanical parameters of surrounding rock in roadway deformation degree,at the same time established the mechanical parameters of surrounding rock and the fitting relation between deformation of roadway.Conclusion based on the above analysis,the combination of loose ring of surrounding rock grouting reinforcement mechanism,to reasonable crushed surrounding rock of roadway anchor reinforcement,and real-time of roadway surrounding rock deformation monitoring data,results show that the support scheme in the control surrounding rock deformation of roadway has achieved considerable results,verify the conclusion of numerical simulation experiment,as well as the similar roadway support provides a certain reference significance.