Abstract
The research analyzed the deformation and fracture mechanism of roadway surrounding rock based on the geological conditions and fracture characteristics of deeply buried roadway in Binchang Mine, and explored the inefficiency of the original supporting scheme considering the testing results of plastic zones of roadway surrounding rock, as well as proposed control countermeasures for stability of roadway surrounding rock. The numerical simulation and theoretical analysis method were adopted to carry out optimized and design schemes. The new support of bolt and cable combine with inverted arch can realize common bearing with roadway surrounding rock and improve the integrity and bearing capacity of supporting structure. The engineering practice indicates that the new supporting scheme can efficiently control roadway deformation, showing significant technical and economic benefits and creating conditions for the safe and efficient production of mine, so it is also of great practical value for the roadway supporting in mine lot with similar geological conditions.
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