A DFN–DEM Multi-scale Modeling Approach for Simulating Tunnel Excavation Response in Jointed Rock Masses

• Published in: Rock mechanics and rock engineering Vol. 53; no. 3; pp. 1053 - 1077
• Main Authors: Wang, Xin, Cai, Ming
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.03.2020; Springer Nature B.V
• Subjects: Civil Engineering; Computer applications; Computer simulation; Dredging; Earth and Environmental Science; Earth Sciences; Equivalence; Excavation; Geophysics/Geodesy; Jointed rock; Mechanical analysis; Modelling; Multiscale analysis; Original Paper; Rock masses; Rocks; Tunnels; Multi-scale approach; Representative elementary volume; Synthetic rock mass; Äspö TAS08 tunnel; Jointed rock mass; Discrete fracture network modeling

Based on the concept of the representative elementary volume (REV) and the synthetic rock mass (SRM) modeling technique, a DFN–DEM multi-scale modeling approach is proposed for modeling excavation responses in jointed rock masses. Discrete fracture networks (DFNs) are generated using MoFrac. For a g...