Abstract:
To solve the dynamic pressure roadway maintenance technical problems, 41103 working face haulage roadway of Shaanxi Binchang Dafosi Mining Company was affected by advanced support pressure and lateral pressure extruding, we analyzed the reason of roadway surrounding rock deformation and instability, low support strength and supporting structural instability was the main factor leading to the destruction of roadway deformation; stable high-strength reinforcement idea was proposed to determine the reasonable support parameters. Research results shows that high strength, surge resistance of prestressed anchor cable with interlocking beam can effectively strengthen the weak parts of the original anchor net supporting bearing structure, and control the roadway deformation.