Trans-scale relationship analysis between the pore structure and macro parameters of backfill and slurry.

ABSTRACT: The characteristics of the porous structure of backfill are directly related to the macro parameters of the flowability of the filling slurry and the mechanical features of the backfill, which are fundamental to the study of multiscale mechanics of backfill. Based on the geometry and fractal theory, scanning electron microscopy images of backfill were analysed by image analysis methods such as OTSU and box counting. The fractal dimension of the pore structure was calculated. By quantitatively characterizing the pore structure, the trans-scale relationships between the fractal dimension of the pore structure and the macro parameters of the filling slurry were established in terms of equilibrium shear stress (ESS) and equilibrium apparent viscosity (EAV). In addition, the correlations betwee

SUBMITTER: Hu J 

PROVIDER: S-EPMC6599773 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature