Abstract:
In order to deal with the technical problem of wide surrounding rock broken,large deformation and difficult to support of the brickwork roadway, comprehensive use of theoretical analysis, numerical simulation and industrial test method, we analyze the stress distribution, plastic zone distribution and deformation characteristics of surrounding rock of the three brickwork roadway of Duanshi Coal Mine, and propose the wall after filling, grouting reinforcement and cable anchor supporting combined control technique. Engineering practices show that the roadway surrounding rock deformation can be controlled within the 120 mm with combined control technique, which effectively solves the problem of the large deformation and difficult to maintenance of the brickwork roadway under the repeated mining influence.