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Effect of stress amplitude on mechanical and acoustic emission of sandstone under constant–cyclic loading
The mechanical characteristics of sandstone under constant–cyclic loading with different amplitudes play a significant role in geotechnical...
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Acoustic Emission Evolution and Hydraulic Fracture Morphology of Changning Shale Stressed to Failure at Different Injection Rates in the Laboratory
Hydraulic fracturing has been widely used to enhance reservoir permeability during the extraction of shale gas. As one of the external input...
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Numerical modeling on wave–current flows and bed shear stresses over an algal reef
Currents in coastal zones under multiple mechanisms in terms of tides, waves, wind, and high roughness are difficult to model; bed shear stresses...
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Characteristics of Acoustic Gravity Waves from the Tonga Volcano Monitored on the Chinese Mainland on January 15, 2022
Based on the barometric data recorded by the seismic monitoring network on the Chinese mainland, Lamb wave periods and relative arrival times of 462...
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Monitoring of Roof Subsidence Based on Manmade Acoustic Signal Properties
AbstractThe manmade acoustic signal properties are determined for rock mass monitoring aimed to predict main roof subsidence in coal longwalls. The...
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Variations in Ultrasonic Signal Spectra for Triaxial Testing of Rock Samples
Abstract —Experiments on sandstone, basalt and granite were carried out on a controlled hydraulic press under triaxial loading conditions at confining...
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Simulation of Shear and Tensile Fractures Using Ductile Phase Field Modelling with the Calibration of P Wave Velocity Measurement and Moment Tensor Inversion
The appropriate understanding and formulation of rock discontinuities via FEM is still challenging for rock engineering, as continuous algorithms...
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Improved Method for Acoustic Emission Source Location in Rocks Without Prior Information
Source location is a fundamental problem in acoustic emission (AE) monitoring. It usually requires configuring two pieces of prior information: wave...
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Loaded Failure Characteristics of Anthracite Derived from Microwave Irradiation: Acoustic Emission Evaluation
Microwave energy and in situ stress cooperatively influence the permeability of coal reservoirs in microwave-assisted coalbed methane (CBM)...
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Study of Coal and Magnetite Collapse Process and Precursor Based on Acoustic Emission Flicker Noise Spectroscopy
Rock-burst prediction is an important issue faced by deep coal mining operations and holds significant significance for ensuring the safety of...
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Effect of Discontinuities on Elastic Wave Velocities in High-Stress Rock Samples: Experimental Research Using Ultrasonic Interferometry
AbstractThe scope of the experimental research embraces velocities of elastic waves in rock samples before and after formation of a horizontal main...
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AE/MS Event Source Location for Circular Hole-Contained Structures Through an Analytical Solution-Based Shortest P-Wave Travel Path
AbstractAcoustic emission/microseismic (AE/MS) source location plays a vital role in the safety monitoring of circular hole-contained structures...
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Application Research of the Combination Technology of MTD-G Electromagnetic Defectoscope Logging and Ultrasonic Lamb Wave Imaging Logging in Complex Casing Damage Wells
In the block of long-term oil and gas production, well cement and casing are comprehensively affected by formation creep, geo stress evolution,...
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Evolution of Mechanical and Acoustic Emission Characteristics of Coal Samples Under Different Immersion Heights
The water level in a coal mine underground reservoir fluctuates dynamically, causing coal pillar dams to be damaged by varying immersion heights,...
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Mechanical and acoustic emission characteristics of anhydrite rock under freeze-thaw cycles
To study the damage mechanisms of anhydrite rock under freeze-thaw cycles, the physical-mechanical properties and the microcracking activities of...
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Experimental Study on Acoustic Emission Characteristics in the Fracture Process of Granite Under Dry and Saturated State
To investigate the evolution characteristics of internal cracks during deformation and failure of dry and saturated granite samples, uniaxial and...
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Integration of distributed acoustic sensing for real-time seismic monitoring of a geothermal field
To accelerate the energy transition, the exploitation of deep geothermal reservoirs is becoming a priority to supply district heating networks in...
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Damage Evolution in Dry and Saturated Brittle Sandstone Revealed by Acoustic Characterization Under Uniaxial Compression
We present results of P-wave velocities and acoustic emission (AE) activities of a calcareous sandstone, collected from the Three Gorges Reservoir...
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A New Look at Hard Rock Abrasivity Evaluation Using Acoustic Emission Technique (AET)
Measurement while drilling (MWD) is one of the most important and useful tasks in mining operations. Access to a method for the accurate measurement...
