Open access
Aug 2026
Digital Drilling-Based Assessment of Rock Anisotropy: A New Index Integrating Drilling-Derived Apparent Friction Angle and Unit Grinding Energy
Accurate characterization of rock anisotropy is crucial for underground engineering stability assessment. In this study, multi-directional drilling tests were performed on sandy mudstone and argillaceous sandstone, with real-time monitoring of feed force (F), torque (M), rotational speed (n), power (P), drilling veloci...
Zu-Guo Mo, Shuai Zhang, Maojun Huang et al.
· Applied Sciences · 0 citations