2024
DOI: 10.17159/2411-9717/776/2023
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Resistance of yielding rockbolts to multiple impact loads

A. Pytlik,
D. O'Connor,
D.J. Corbett

Abstract: The resistance of yielding rockbolts to multiple impact loads was tested by means of a drop hammer. The methodology was based on the ASTM D7401-08 standard as well as the requirements specified for rockbolts by Luossavaara-Kiirunavaara Aktiebolag (LKAB - a Swedish mining company) and the Safety In Mines Research Advisory Committee of South Africa (project number GAP 423). During the tests, the loading force and bolt elongation were measured with a sampling frequency of fs = 19.2 kHz. In order to analyse the ph… Show more

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