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ELASTIC WAVE PROPAGATION IN DIAGNOSTICS OF SELF-DRILLING SYSTEM OF GROUTED ANCHORS
2017
DIAGNOSTYKA
unpublished
The paper presents an experimental investigation of elastic wave propagation in a self-drilling hollow bar system, which is commonly used in geotechnical industry as the element of grouted ground anchors and soil nails. The single self-drilling hollow bar and self-drilling system of two bars connected by a coupler were considered. Longitudinal waves were excited at one end of the bar and registered at both ends, by means of PZT plate transducers. Additionally, in the case of connected bars, the
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