DBPapers
DOI: 10.5593/SGEM2014/B12/S2.064

IN-SITU TESTING OF VIBRATION PROPAGATION WHILE DRIVING THE PREFABRICATED PILES

S.Pradelok; M. Lupiezowiec; P.Betkowski; A. Rudzik
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 503-510 pp

ABSTRACT
This paper presents results obtained with the use of accelerometers during in-situ testing. Horizontal accelerations of propagating impacts caused by driving the prefabricated piles were recorded. Range of the shocks as well as amplitudes of longitudinal and transverse horizontal accelerations of propagating vibrations on the terrain surface were determined. This paper presents only the field tests results of vibration propagations caused by the shocks induced by pile driving near the road bridge. The recorded results were used to calibrate the numerical model of the finite element method. A good consistency of acceleration amplitudes in the direction of vibration propagation was achieved and it depended on the distance from location of the driven pile. The results of numerical analyses of wave propagation in the ground will be presented in another paper at this conference.

Keywords:pile driving, technological shock, ground vibrations, field tests