Characteristics of Electromagnetic Radiation and the Acoustic Emission Response of Multi-Scale Rock-like Material Failure and Their Application

Li, Zhonghui; Lei, Yueyu; Wang, Enyuan; Frid, Vladimir; Li, Dexing; Liu, Xiaofei; Ren, Xuekun

doi:10.3390/foundations2030052

Cited by 9 publications

(2 citation statements)

References 9 publications

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“…Fursa et al [ 96 ] focused on investigating the variations in acoustic and electromagnetic emission parameters, identifying high-amplitude AE and the appearance of EMR signals as primary diagnostic criteria for concrete cracking initiation. Li et al [ 97 ] observed that the cumulative EMR counts for concrete, and similar rock-like materials exhibit a decreasing-then-increasing trend with increasing stress levels during loading and unloading. The drastic change in EMR occurs only during collapse.…”

Section: Electromagnetic Radiation Monitoringmentioning

confidence: 99%

A Review on Concrete Structural Properties and Damage Evolution Monitoring Techniques

Zhang,

Peng,

Wen

et al. 2024

Sensors

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Concrete structures have emerged as some of the most extensively utilized materials in the construction industry due to their inherent plasticity and high-strength characteristics. However, due to the temperature fluctuations, humidity, and damage caused by human activities, challenges such as crack propagation and structural failures pose threats to the safety of people’s lives and property. Meanwhile, conventional non-destructive testing methods are limited to defect detection and lack the capability to provide real-time monitoring and evaluating of concrete structural stability. Consequently, there is a growing emphasis on the development of effective techniques for monitoring the health of concrete structures, facilitating prompt repairs and mitigation of potential instabilities. This paper comprehensively presents traditional and novel methods for concrete structural properties and damage evolution monitoring, including emission techniques, electrical resistivity monitoring, electromagnetic radiation method, piezoelectric transducers, ultrasonic techniques, and the infrared thermography approach. Moreover, the fundamental principles, advantages, limitations, similarities and differences of each monitoring technique are extensively discussed, along with future research directions. Each method has its suitable monitoring scenarios, and in practical applications, several methods are often combined to achieve better monitoring results. The outcomes of this research provide valuable technical insights for future studies and advancements in the field of concrete structural health monitoring.

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Section: Electromagnetic Radiation Monitoringmentioning

confidence: 99%

A Review on Concrete Structural Properties and Damage Evolution Monitoring Techniques

Zhang,

Peng,

Wen

et al. 2024

Sensors

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“…It is noteworthy that with the continuous extension of coal mining deeper underground, ground stress and gas pressure in coal seams gradually increase, and coal and gas outbursts, rock bursts, and other coal rock dynamic disasters become more serious and complex [24]. It is known that in the processing of rocks in the mines electromagnetic radiation occurs.…”

Section: The Additional Practical Use Of the Researchmentioning

confidence: 99%

Earthquakes Three-Stage Early Warning and Short-Term Prediction

Kachakhidze,

Kachakhidze-Murphy,

Ramishvili

et al. 2024

Prev. Treat. Nat. Disaster

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Among the anomalous geophysical phenomena observed preceding earthquakes, specific attention has been given to VLF/LF, ULF (very low frequency/low frequency, ultra-low frequency) electromagnetic (EM) emissions, recorded before earthquakes, because of an interesting correlation between them and seismic activity. Numerous scientific papers have been published on this topic, providing convincing evidence of these processes observed using ground-based and satellite ground-based observations during the preparation for the earthquake. These phenomena are detectable both at laboratory and geological scales. The authors of this paper have used an avalanche-like unstable geological model of fault formation and a model of the generation of electromagnetic emissions detected before the earthquakes to prove the prediction capabilities of VLF/LF EM emissions. The first gives a clear imagination of earthquake preparation in all stages in the focal area from the beginning of the micro-cracks appearing to the final formation of fault. Another one, based on electrodynamics, explains the EM emissions origination process and offers a formula that analytically connects the observed frequency of EM radiation with the linear size of the emitted body (fault). It is worth emphasizing the synthesis and rather harmonious relation of the mentioned models. Based on the above models conducted studies clearly show that the description of a qualitative avalanche-unstable geological model of fault formation using VLF/LF EM radiation data made it possible to quantitatively characterize the full cycle of preparation and occurrence of earthquake process. Namely, in the case of VLF/LF emissions monitoring, the beginning of the “avalanche process” of ruptures is considered the first stage of early warning of an incoming earthquake. The so-called EM emissions “silence” period is assessed as the second stage of early warning. The third early warning or an alarm about an incoming earthquake may be announced immediately at the moment of the first anomaly appearance subsequently the “silence” period. This article offers the method of earthquake three-step early warning and short-term (hourly) prediction.

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Shear-induced rockburst of double-tunnel rocks subjected to shear loading: A comparative analysis

Xin,

Jiang,

Zhai

et al. 2023

J. Cent. South Univ.

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Characteristics of Electromagnetic Radiation and the Acoustic Emission Response of Multi-Scale Rock-like Material Failure and Their Application

Cited by 9 publications

References 9 publications

A Review on Concrete Structural Properties and Damage Evolution Monitoring Techniques

A Review on Concrete Structural Properties and Damage Evolution Monitoring Techniques

Earthquakes Three-Stage Early Warning and Short-Term Prediction

Shear-induced rockburst of double-tunnel rocks subjected to shear loading: A comparative analysis

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