INTEGRITY ASSESSMENT OF GROUND ANCHORAGES

摘要

The invention relates to a method for monitoring the condition of a ground anchorage (2) in a bore in a ground formation (1) at a site, which method comprises: securing a means for monitoring frequency response spectra (10) to said ground anchorage, applying to said ground anchorage an impulse load (11) of a predetermined value, recording the signature of the frequency response spectra, and comparing said signature with a reference signature from the site, thereby to obtain an indication of the integrity of the ground anchorage in the formation.