Predicting compressive–shear fracture in rock masses containing complex flaw distributions remains a major challenge in rock engineering. We propose an improved non-ordinary state-based peridynamics (NOSB-PD) model to simulate rock fracture behavior in this work. A stabilized NOSB-PD formulation is developed by incorpo...
This study conducts true triaxial compression tests on three types of sandstone under a constant intermediate principal stress of σ 2 = 28 MPa. The stresses applied to the X ‐direction surfaces are progressively increased while their difference remains fixed at Δ σ = 3 MPa. Strength, deformation, failure m...
To investigate the mechanical response and evolutionary mechanisms of shear-slip rockburst in fractured rock masses, intact, single-fracture, and double-fracture cubic specimens were fabricated using a self-developed synthetic material designed to reproduce pronounced elastic energy storage and rapid brittle failure. S...
Water exerts a significant influence on the mechanical integrity of rock masses through water–rock interaction, which is directly related to the stability of deep underground engineering projects. In this study, laboratory direct shear tests and discrete element method (DEM) numerical simulations were combined to inves...
To investigate the shear behavior and anchoring response of bolted infilled rock joints under the combined effects of joint roughness, infill thickness, and initial mixing water content, rock-like specimens with joint roughness coefficients (JRC = 2.8–14.5), infill thicknesses (t = 0–6 mm), and initial mixing water con...
The simplified characterization of rough rock fracture morphology is fundamental to understanding shear mechanical behavior. This study presents a method for constructing fracture surfaces by integrating profiles with varied inclined dentate asperities. The resulting five surfaces (D_1 to D_5) were quantitatively val...
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