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MEASUREMENT OF SOIL RESISTANCE FOR STEEL PIPE PILES DURING VIBRATORY HAMMER INSTALLATION
Ist Teil von
Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering), 2022, Vol.78(2), pp.I_181-I_186
Ort / Verlag
Tokyo: Japan Society of Civil Engineers
Erscheinungsjahr
2022
Link zum Volltext
Quelle
EZB Electronic Journals Library
Beschreibungen/Notizen
This paper evaluated the soil resistance during installation by a vibratory hammer. Steel pipe piles with a diameter of 1800 mm were constructed at Niigata airport signal bridge construction. During installation, dynamic measurements with axial strain and acceleration of the vibratory hammer body were performed. As the calculation method of the soil resistance for vibratory hammer installation, the singlemass model analysis method and the CASE method (Rausche et al., 1985) based on the one-dimensional wave theory were adopted. We attempted to separate the soil resistance into the shaft and the toe from the shape of the soil resistance – displacement curve. The calculated soil resistance curve trends were in good agreement with the N values in the ground survey results.