DEM-FDM investigation of bedding plane properties' impact on laminated roof stability.

ABSTRACT: Laminated roofs are susceptible to cutter roof failure caused by excavation disturbances. To assess the impact of bedding plane properties on their stability under mining stress, a panel-scale numerical model was created using a combination of the discrete element method (DEM) and finite differential method (FDM). The laminated roof was modeled with a bonded particle model (BPM) integrated with a discrete fracture network (DFN) to closely examine fracture behavior, while the surrounding rock was treated as a continuum material. The model was validated through a uniaxial compressive test on Berea sandstone. This validated model was then used to study how varying bedding plane strength and the cohesion-to-tensile strength ratio affect roof deformation, fracturing, and failure during entry de

SUBMITTER: Ma X 

PROVIDER: S-EPMC12638866 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature