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Acoustic Emission Characteristics and Damage Evolution Analysis of Sandstone under Three-Point Bending Test
Published 2023-01-01“…By using stress loading system and acoustic emission technology, the acoustic emission characteristic parameters of the sandstone fracture process were analyzed, the precursory information of rock bending fracture was explored, and the evolution law of sandstone damage based on acoustic emission characteristics was obtained. …”
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62
Investigation of Anisotropic Behavior and Statistical Evolution of Acoustic Emission Energy during the Deformation of Layered Sandstone
Published 2022-01-01“…To further understand the anisotropic behavior of layered rock and the precursor characteristics of rock mass instability, a series of uniaxial compression experiments using a loading system and an acoustic emission system was conducted on sandstone specimens. …”
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63
Acoustic Emission Characteristics and Energy Evolution of Red Sandstone Samples under Cyclic Loading and Unloading
Published 2021-01-01“…To explore the characteristics of rock deformation and failure under cyclic loading and unloading, the MTS815 rock mechanics test system and acoustic emission (AE) signal acquisition system were used to perform cyclic loading and unloading tests on red sandstone samples. …”
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64
The use of acoustic emissions technique in the monitoring of fracturing in concrete using soundless chemical demolition agent
Published 2019-10-01“…Soundless chemical demolition agents (SCDAs) have been used during the last decades in the demolition of boulders and concrete structures as well as in open-surface and sub-surface rock excavation, as an alternative to the use of explosives posing safety risks. …”
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65
Experimental Study of the Creep Disturbance Effect and Acoustic Emission Characteristics of Mudstone with Different Moisture Contents
Published 2021-01-01“…It is important to have a clear understanding of the creep characteristics of water-rich soft rocks under a dynamic load and the evolution of cracks because soft rock roadways in deep mines are very sensitive to disturbances, and instability and damage can easily occur under the impact of disturbances such as mining and blasting. …”
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66
State Judgement Model of the Coal and Rock Medium and Its Engineering Application
Published 2020-01-01“…To evaluate the damaging failure extent of the coal and rock mass and distinguish the state of the coal and rock mass medium, first, the medium state index was defined based on the acoustic wave propagation model. …”
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67
Machine Learning–Enhanced Microseismic Analysis for Evaluating Rock Crack Trajectory
Published 2024-01-01“…Microseismic (MS) monitoring is an effective method for tracking the development of rock fractures. However, the utilization of existing data is severely limited by current visualization techniques. …”
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68
Experimental investigation on mechanical properties and strength criteria of frozen soft rock.
Published 2025-01-01“…Acoustic emission (AE) tests were conducted to further verify that the soft rocks show shear failure under load, with a shear plane showing an angle of 45° with the horizontal. …”
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69
Research on Recognition of Quiet Period of Sandstone Acoustic Emission Based on Four Machine Learning Algorithms
Published 2022-01-01“…Aiming at solving the problem that it is difficult to recognize the quiet period of acoustic emission in rocks, four machine learning algorithms were adopted to develop and improve the recognition method of the quiet period of acoustic emission. …”
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70
A Study of Acoustic Emission and Damage Evolution of Limestone under Different Stress Paths and Confining Pressures
Published 2021-01-01“…Buried depth is an important factor affecting the deformation and failure of gob surrounding rock. Basing on triaxial compression unloading test and acoustic emission (AE) of limestone under three different initial confining pressures (5 MPa, 10 MPa, and 20 MPa) and three different stress paths, we analyzed the deformation and failure characteristics and energy releasing process of the virgin rock, the gob overburden rock, and the gob sidewall rock with different buried depths (within 1000 m). …”
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71
Damage Evolution of Sandstone under Constant-Amplitude Cyclic Loading Based on Acoustic Emission Parameters and Resistivity
Published 2021-01-01“…Therefore, it is particularly necessary to investigate the mechanical characteristics of rock subjected to cyclic loading. These parameters of rock, acoustic emission (AE) and resistivity, are both sensitive to the failure process of rock, and they are complementary to the different stages of rock damage. …”
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72
Mechanical Behavior and Acoustic Emission Characteristics of Sandstone Under Different Cyclic Loading and Unloading Disturbance Rates
Published 2025-01-01“…The results show that the peak strength of rock samples initially decreases and then increases as the disturbance rate increases. …”
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73
Research on acoustic emission precursor characteristics of coal sample unloading failure based on discrete wavelet analysis
Published 2024-12-01“…Abstract Acoustic emission information can describe the damage degree of rock samples in the process of failure. …”
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74
Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters
Published 2021-01-01“…In order to study the influence of borehole diameter on rock mass pressure relief effect, indoor acoustic emission characteristics and numerical simulation of rock samples with different borehole diameter were studied. …”
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75
Strain Rate Effect on Acoustic Emission Characteristics and Energy Mechanisms of Karst Limestone under Uniaxial Compression
Published 2020-01-01“…Under low strain rates, the rock was damaged seriously, AE signals appeared continuously, and the cumulative number of AE signals was high. …”
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76
Application of improved and efficient image repair algorithm in rock damage experimental research
Published 2024-06-01“…Abstract In the petroleum and coal industries, digital image technology and acoustic emission technology are employed to study rock properties, but both exhibit flaws during data processing. …”
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77
Rock-Arch Instability Characteristics of the Sandstone Plate under Different Loading Conditions
Published 2014-01-01“…Under the concentrated loading and the uniform loading, the tests on the brittle fracture and the hinged arching until the rock-arch instability of the sandstone plate were conducted using self-developed loading device, and the sensitivity of influent factors on the rock-arch failure was analyzed by numerical test based on the particle flow code (PFC). …”
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78
Study of the Influence of Clay Minerals on the Mechanical and Percolation Properties of Weakly Cemented Rocks
Published 2022-01-01“…The weakly cemented rock layer is easily damaged under the combined effect of seepage and mining disturbance and creates massive engineering disasters. …”
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79
Pattern Recognition of Signals for the Fault-Slip Type of Rock Burst in Coal Mines
Published 2015-01-01“…Then, the patterns of the electromagnetic radiation, acoustic emission (AE), and microseismic signals in the fault-slip type of rock burst were proposed, in that before the rock burst occurs, the electromagnetic radiation intensity near the sliding surface increases rapidly, the AE energy rises exponentially, and the energy released by microseismic events experiences at least one peak and is close to the next peak. …”
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80
Investigation of the Effects of Freeze-Thaw Cycles on Geomechanical and Acoustic Characteristics of Tuff Specimens under Different Stress Paths
Published 2020-01-01“…In the process of development and construction of open-pit mine slope in the high altitude and cold area, freeze-thaw (F-T) cycles have an important impact on rock engineering structure. F-T cycles lead to the decrease in physical and mechanical properties of rock, which is closely related to the stability of open-pit slope. …”
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