Dynamic testing of micropiles subjected to tensile loads
Dynamic testing of micropiles subjected to tensile loads
Besides being used as conventional foundation element, a field of application of micropiles is the foundation of protective structures, allowing for the transfer of mainly tensile loads into the subsoil. In contrast to their use in foundations, micropiles in protective structures are generally subjected to dynamic loads, whilst permanent loads play a subordinate role. In a series of research activities, the possibilities of dynamic testing of micropiles were investigated. This refers to the application of an impulse-like load, that is capable to reproduce the real loading behaviour of micropiles used for the foundation of protective structures, to enable a more accurate testing and validation. This paper shows the results of two series of tests which demonstrate the possibilities of an impact-like load application with respect to the testing of micropiles. These tests have shown, that the approach of using an impact-like testing method for micropiles can be used on the one hand to get a deeper insight into the behaviour of such geotechnical elements and on the other hand, that these methods also offer new possibilities regarding the on-site testing of micropiles used for protective structures.
J. Matthias Rebhan; Hans-Peter Daxer; Roman Marte; Florian Kainz; Jörg Edler
5th European Conference on Physical Modelling in Geotechnics (ECPMG2024)
New facilities, new equipment, measuring techniques
https://doi.org/10.53243/ECPMG2024-86
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