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@article{Lim:2018:10.1680/jgele.18.00068,
author = {Lim, GT and Pineda, JA and Boukpeti, N and Fourie, A and Harb, Carraro J},
doi = {10.1680/jgele.18.00068},
journal = {Géotechnique Letters},
pages = {240--247},
title = {Experimental assessment of sampling disturbance in calcareous silt},
url = {http://dx.doi.org/10.1680/jgele.18.00068},
volume = {8},
year = {2018}
}

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TY  - JOUR
AB  - A small-scale physical modelling program using particle image velocimetry and digital image correlation techniques was designed to obtain a refined understanding of the disturbance experienced by calcareous silt during tube sampling. The influence of the sampler wall thickness (diameter-to-thickness ratio, B/t) and the tube penetration rate were evaluated by estimating displacement and strain fields around the tube sampler. The results indicate that sampling with a thin tube leads to a relatively narrow undisturbed zone located at the centre of the tube, with a width slightly smaller than the tube radius. Opposite to what is suggested for soft clays, tube sampling tends to densify the calcareous silt. This aspect has an important influence on the assessment of sample quality in calcareous silt for offshore and onshore projects.
AU  - Lim,GT
AU  - Pineda,JA
AU  - Boukpeti,N
AU  - Fourie,A
AU  - Harb,Carraro J
DO  - 10.1680/jgele.18.00068
EP  - 247
PY  - 2018///
SN  - 2045-2543
SP  - 240
TI  - Experimental assessment of sampling disturbance in calcareous silt
T2  - Géotechnique Letters
UR  - http://dx.doi.org/10.1680/jgele.18.00068
UR  - http://hdl.handle.net/10044/1/63849
VL  - 8
ER  -

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Dr J Antonio H Carraro

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