Chapter

Holistic Simulation of Geotechnical Installation Processes

Volume 82 of the series Lecture Notes in Applied and Computational Mechanics pp 101-123

Date:

Experimental Investigation of Vibratory Pile Driving in Saturated Sand

  • Jakob VogelsangAffiliated withInstitute of Soil Mechanics and Rock Mechanics, Karlsruhe Institute of Technology Email author 
  • , Gerhard HuberAffiliated withInstitute of Soil Mechanics and Rock Mechanics, Karlsruhe Institute of Technology
  • , Theodoros TriantafyllidisAffiliated withInstitute of Soil Mechanics and Rock Mechanics, Karlsruhe Institute of Technology

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Abstract

An experimental study using half-model tests to investigate the vibro-penetration of piles in saturated sand is presented. In the tests, a model pile with half-circular cross section is penetrated along an observation window by means of a vibrator. The use of a high speed camera and a sophisticated image acquisition system enables the observation of the penetration process with sufficient temporal and spatial resolution. A consistent evaluation of pile head and toe motion is achieved using a combined interpretation of acceleration measurements and Digital Image Correlation (DIC) analysis. The application of DIC to evaluate cyclic soil deformations reveals the relation of typical displacement patterns in the soil and characteristic phases of pile penetration. Pore water pressure measurements at two fixed locations show the dependence of pore water pressure evolution on the penetration mode and soil density. The extensive measurements allow an improved interpretation of the typical penetration modes during vibratory pile driving.

Keywords

Vibratory pile penetration Pile driving Digital image correlation