Research on Deformation Control Technology of Tunnel Surrounding Rock
In order to solve the problem of large deformation of the surrounding rock in the return air roadway,numerical simulation software was used to analyze the deformation of the roadway under the original support scheme.It was found that the maximum displacement of the two sides of the roadway under the original support scheme was 397 mm,and the maximum deformation of the top and bottom sides of the roadway were 0.326 m and 0.185 m,respectively.It was determined to optimize the roof support of the roadway.On the basis of the original support scheme,the roof anchor cable reinforcement support was carried out.After reinforcement support,the displacement of the top and bottom walls of the roadway and the two sides were 241 mm and 158 mm,respectively.The deformation of the roadway was controlled within the allowable range,providing a certain reference for enterprises to reduce costs and increase efficiency.
numerical simulationsurrounding rock deformationsupport optimizationreduce costs and increase efficiency
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