Integrated Collaborative Control of “Shielding-Filling-Grouting” of 1 km Deep Large-Section Roadways: A Case Study

Effective control of deformation failure surrounding rock in deep roadway has become an important prerequisite for the safe and efficient development coal resources. In this study, field measurement study area’s in-situ stress was carried out specific engineering geological conditions KCM −967 m level west-wing main track roadway. The roadway’s full-section features were summarized analyzed, nonlinear mechanism revealed from perspective elastoplastic mechanics. Based on that, a set highly targeted integrated collaborative technology “shielding-filling-grouting” system proposed. industrial test after above scheme adopted, there no strong surface mass, which played role active passive support control, reduced subsequent repeated repair maintenance workload roadway, satisfied needs long-term production mine. results obtained provide reference large-section roadways other mining areas.