Study on Grouting Technology and Numerical Simulation of Cement-rich Limestone Fracture Zone in Coal Roadway
Due to the influence of cement-rich limestone fracture zone,coal roadway is prone to unstable deformation.In this paper,based on the engineering background of a coal roadway,combined with a large number of tunnel grouting reinforcement engineering experi-ence,the construction grouting plan for the cement-rich limestone fractured zone roadway is formulated,and based on the actual engineering parameters,combined with FLAC3D software numerical simulation,the effect of roadway grouting reinforcement is verified,which provides some reference for the design and construction of related engineering problems.