Study on Acoustic Emission and Coda Wave Characteristics of Layered Cemented Tailings Backfill under Uniaxial Compression

Huang, Chongjie; He, Wenqin; Lu, Bokai; Wang, Manman; Li, Shenhai; Xiao, Changbo

doi:10.3390/min12070896

Cited by 8 publications

(7 citation statements)

References 32 publications

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“…Acoustic emission refers to elastic strain waves generated by sudden release of strain energy inside an object [9][10][11][12]. Slight deformation occurs in corroded area on the bottom plate of metal storage tanks under load pressure, leading to cracking in corrosion layers and generation of acoustic emission signals.…”

Section: Principle Of Acoustic Emission Detectionmentioning

confidence: 99%

Research on Corrosion Detection Method of Oil Tank Bottom Based on Acoustic Emission Technology

Hua,

Chen,

Zhao

et al. 2024

Preprint

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This paper presents an acoustic emission (AE) detection method for refined oil storage tanks, enabling online detection of corrosion points and microleakage in the tank floor. The method utilizes an explosion-proof acoustic emission instrument to detect the floor of a refined oil storage tank. By calculating the time difference between the defective acoustic signal and the speed of acoustic wave transmission, a mathematical model is constructed to analyze the detected signals. A technical scheme for acoustic emission detection in storage tanks is designed, and the instru-ment is used to carry out acoustic emission testing on the product oil storage tank floor. Based on these test results, location analysis of acoustic emission sources is conducted on the bottom plate of the tank, evaluating its corrosion condition accurately. The consistency between the evaluation and subsequent open tank tests confirms that using acoustic emission technology effectively captures corrosion signals from product oil storage tank bottoms. Consequently, it significantly improves inspection efficiency by avoiding unnecessary tank-opening operations. Combining this method with open tank inspection operations such as the leakage magnetic method, one can fully grasp the status of the refined oil storage tanks.

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Section: Principle Of Acoustic Emission Detectionmentioning

confidence: 99%

Research on Corrosion Detection Method of Oil Tank Bottom Based on Acoustic Emission Technology

Hua,

Chen,

Zhao

et al. 2024

Preprint

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show abstract

“…AE refers to elastic strain waves generated by a sudden release of strain energy inside an object [9][10][11][12]. A slight deformation occurs in a corroded area on the bottom plate of a metal storage tank under load pressure, leading to cracking in the corroded layers and the generation of AE signals.…”

Section: Principle Of Ae Detectionmentioning

confidence: 99%

“…Furthermore, it brings about shutdowns, emptying procedures, replacements and cleanings, resulting in substantial economic losses and potential environmental pollution. AE refers to elastic strain waves generated by a sudden release of strain energy inside an object [9][10][11][12]. A slight deformation occurs in a corroded area on the bottom plate of a metal storage tank under load pressure, leading to cracking in the corroded layers and the generation of AE signals.…”

Section: Introductionmentioning

confidence: 99%

Research on a Corrosion Detection Method for Oil Tank Bottoms Based on Acoustic Emission Technology

Hua,

Chen,

Zhao

et al. 2024

Sensors

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This paper presents an acoustic emission (AE) detection method for refined oil storage tanks which is aimed towards specialized places such as oil storage tanks with high explosion-proof requirements, such as cave oil tanks and buried oil tanks. The method utilizes an explosion-proof acoustic emission instrument to detect the floor of a refined oil storage tank. By calculating the time difference between the defective acoustic signal and the speed of acoustic wave transmission, a mathematical model is constructed to analyze the detected signals. An independent channel AE detection system is designed, which can store the collected data in a piece of independent explosion-proof equipment, and can analyze and process the data in a safe area after the detection, solving the problems of a short signal acquisition distance and the weak safety protection applied to traditional AE instruments. A location analysis of the AE sources is conducted on the bottom plate of the tank, evaluating its corrosion condition accurately. The consistency between the evaluation and subsequent open-tank tests confirms that using AE technology effectively captures corrosion signals from oil storage tanks’ bottoms. The feasibility of carrying out online inspection under the condition of oil storage in vertical steel oil tanks was verified through a comparison with open inspections, which provided a guide for determining the inspection target and opening order of large-scale oil tanks.

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“…Acoustic emission characteristic parameters were used to characterize crack initiation and propagation, and the fracture mode in the deformation and failure process of rocks [25,26]. The evolution law of acoustic emission signals in the failure process of backfill with different cement-tailing ratios was explored [27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mechanical and Acoustic Characteristics of Cemented Backfill with Unclassified Tailings at Different Curing Ages under Uniaxial Compression

Zhao

Zeng

et al. 2023

Sustainability

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In order to study the influence of the cement–tailing ratio and curing age on the mechanical properties of cemented backfill with unclassified tailings and improve the accuracy of the backfill monitoring method, the mechanical characteristics of the failure process of cemented backfill with unclassified tailings at different curing ages were studied using the acoustic emission and infrasound method. The results show that the peak strength and modulus of elasticity of backfill are positively correlated with the curing age. During the failure process of cemented backfill with unclassified tailings, the acoustic emission ringing count shows a “stabilizing–rising–falling–rising” trend, and the infrasonic ringing count will have a “multiple peak” phenomenon. The ib value of the acoustic emission signal generally increases with the extension of the curing age. The ib value of the infrasonic signal generally has a negative correlation with the increase of the curing age. When the ib value of the acoustic emission and infrasonic wave all start to decline in a jumping manner, this indicates that the backfill is about to be damaged. The dominant frequency ratio of acoustic emission signals (FAE) is distributed between 0–4 during the failure process, and the total number of FAE shows the phenomenon of “first decreasing and then increasing” with the curing age. The dominant frequency ratio of infrasonic signals (Fs) is distributed between 0–6. During the failure process of cemented backfill with unclassified tailings, the quantity ratio of class A and B of acoustic emission signals shows a gradually increasing trend, and the quantity ratio of class A and B of infrasonic signals shows a “decreasing–increasing–decreasing” trend, and the quantity ratio of class A and B of acoustic signals shows a sharp increase at the stage of entering the crack’s unstable growth stage.

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Study on Acoustic Emission and Coda Wave Characteristics of Layered Cemented Tailings Backfill under Uniaxial Compression

Cited by 8 publications

References 32 publications

Research on Corrosion Detection Method of Oil Tank Bottom Based on Acoustic Emission Technology

Research on Corrosion Detection Method of Oil Tank Bottom Based on Acoustic Emission Technology

Research on a Corrosion Detection Method for Oil Tank Bottoms Based on Acoustic Emission Technology

Experimental Study on the Mechanical and Acoustic Characteristics of Cemented Backfill with Unclassified Tailings at Different Curing Ages under Uniaxial Compression

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