Single-particle breakage behavior and acoustic emission response in calcareous sand

Mechanical Uplifting Behavior of Belled Piles Embedded in Calcareous Sands: Insights from Acoustic Emission Monitoring

The uplift behavior of belled piles in crushable calcareous sand remains poorly understood due to limited research and a lack of suitable methods for quantifying particle-scale interactions. This study addresses this gap by supplementing the existing database with data from model uplift tests that integrate acousti...

Study on mechanical breakage mechanisms of volcanic soil particles under discrete element method

Study on Acoustic Emission Response and Failure Characteristics of Rock–Proppant–Rock Composite Constructions Under Uniaxial Compression

To reveal the bearing and instability mechanisms after filling proppants in the blasting pressure-relief fracture, four types of proppant-containing sandstone composite construction with interface inclinations of 0°, 4°, 8°, and 12° were prepared. A uniaxial compression test was conducted by combining Acoustic Emission...

Mechanical Degradation and Acoustic Emission Characteristics of Sandstone Containing Intersecting Fissures Under Uniaxial Compression

Intersecting fissures strongly affect stress transfer and crack coalescence in rock, but their coupled effects on mechanical degradation and acoustic emission signatures remain incompletely understood. We conducted uniaxial compression tests with synchronous acoustic emission monitoring on prismatic sandstone specimens...

Acoustic Granulometry of Granular Avalanches: Laboratory Validation of the Size–Frequency Relationship

Granular flows generate intense acoustic emissions, yet the quantitative relationship between particle size and sound frequency remains poorly characterized for natural, irregular materials. This study investigates the inverse relationship between mean particle size and the spectral centroid of acoustic emissions under...

Mechanical properties and acoustic emission characterization of red sandstone with cross-fractures

To investigate the mechanical behavior and responses under loading, energy dissipation, and crack propagation in rocks with cross-fractures, this study prepared rock specimens with varying angles of cross-fractures and conducted uniaxial loading tests combined with acoustic emission monitoring to obtain mechanical pa...