Abstract:As underground resource extraction progresses deeper, the rheological behavior of surrounding rock in tunnels has become increasingly prominent, emerging as one of the main challenges restricting the effectiveness of deep tunnel support. Taking the rail roadway of the Hudu coal mine in Jincheng as the research object, this paper investigates the control mechanism of rheological deformation in deep tunnels through theoretical analysis, and validates the theoretical findings using FLAC3D numerical simulation software. The research results indicate that the effective control of tunnel rheology is closely related to the interaction between support reaction forces and geological stresses. By reasonably increasing the support strength, the development trend of surrounding rock rheology can be significantly suppressed. This study provides an important reference for the stability control of deep tunnels.
