Fracturing Characteristics in Geomaterials with Circular Hole and Flaws under Various Loading Conditions
thesis
posted on 2025-01-14, 00:53authored byPengxuan Ji
This research explores the fracturing characteristics in defected geomaterials. The event auto-classification on a micro-seismic dataset is conducted. To address the limitations of in-situ monitoring, the study employs quasi-static and coupled static and dynamic tests on defected geomaterials to investigate the role of defect geometry, flaw-hole interactions, loading conditions and other factors. It applies measurement techniques including digital image correlation, acoustic emission and X-ray computed tomography. The characteristics of acoustic emission are explored alongside deep learning for event auto-processing. Multi-scale numerical modelling extends experimental works to field-scale simulations, validating fracture characteristics in tests and predicting critical zones in engineering projects.