Abstract
A small-scale 1-g transparent soil model was employed to investigate soil deformations caused by casing-assisted pile jacking of plastic tube cast-in-place concrete piles. The transparent soil was made of fused quartz and a refractive index matched blended oil. Models were sliced with a laser light sheet and digital images were employed to record jacking and extraction of the casing, allowing the use of digital image correlation to derive the generated displacement fields, non-intrusively. The effects of the shoe shape as well as use of a casing to jack the pile were investigated. It was found that under unconfined conditions, soil response to jacking is significantly affected by the pile shoe shape, with displacements adjacent to a conical shoe markedly smaller compared to a flat shoe. Moreover, casing extraction results in recovery of some of the soil deformation that takes place during pile jacking.
Original language | English (US) |
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Pages (from-to) | 809-826 |
Number of pages | 18 |
Journal | Geotechnical and Geological Engineering |
Volume | 35 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1 2017 |
Keywords
- Expanded-shoe
- PIV
- Particle image velocimetry
- Physical modeling
- Transparent soil
ASJC Scopus subject areas
- Architecture
- Geotechnical Engineering and Engineering Geology
- Soil Science
- Geology