Abstract:
A large part of the deformation of surrounding rock in roadways is caused by unreasonable support parameters and single support method, leading to problems such as roof subsidence and floor heave in some areas. Taking the actual geological conditions of the 2306 belt conveyor roadway in Changcun Coal Mine as the research background, comprehensive research methods including borehole peeping, numerical simulation, and field industrial tests were adopted, and the combined support form of rock bolts and anchor cables was selected as the permanent support. Field industrial tests show that the proposed support scheme reduces the roof-floor convergence and the convergence of the two sidewalls, effectively solving the serious deformation problem of the 2306 belt conveyor roadway, and providing reference for surrounding rock control in roadways under similar geological conditions within Lu’an Group and even across the country.