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http://dx.doi.org/10.9711/KTAJ.2014.16.5.471

Development of acoustic emission monitoring system for the safety of geotechnical structures  

Cheon, D.S. (Korea Institute of Geoscience and Mineral Resources)
Jung, Y.B. (Korea Institute of Geoscience and Mineral Resources)
Park, E.S. (Korea Institute of Geoscience and Mineral Resources)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.16, no.5, 2014 , pp. 471-485 More about this Journal
Abstract
The monitoring method of geotechnical structures using acoustic emission(AE) and microseismicity(MS) is to detect the microscopic deformation and fracture behavior in the inner structures by measuring induced acoustics and vibrations. It can identify a pre-indication of failure by taking advantage of the characteristics that the amount and occurrence rates of AE and MS increase rapidly prior to large scale destruction of the target structures. The monitoring system consisting of high-quality sensors, high-speed data acquisition device and the operation program is required for the practical application of this method. Recently, the AE and MS monitoring systems have been localized. In particular, the developed operation software which can analyze and interpret the measured signals was demonstrated through a number of applications to domestic fields. This report introduces the configuration and features of developed monitoring system, then the challenges and future direction of AE monitoring in geotechnical structures are discussed.
Keywords
Acoustic emission; Microseismic; Monitoring; Operation software; Early warning;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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