SYMPOSIA PAPER Published: 01 January 2006

Microstructure, Strength, and Consolidation Properties of Ariake Clay Deposits Obtained from Samplers


The effect of tube wall friction on the microstructure of Ariake clay samples obtained from a small diameter sampler (45-mm sampler) and their strength and consolidation properties are examined from use of a color laser three-dimensional profile microscope plus unconfined compression, triaxial compression, and standard oedometer tests. The microstructure within 2 mm of the tube wall was disturbed due to wall friction. However, the disturbance in the rest of the sample had other causes and the samples were mechanically homogeneous. The unconfined compressive strength and preconsolidation pressure values obtained from the 45-mm sampler were 20 % to 40 % greater than those of the 75-mm sampler and their sample quality therefore higher.

Author Information

Shogaki, T
National Defense Academy, Kanagawa, Japan
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: D18
Pages: 98–105
DOI: 10.1520/STP37678S
ISBN-EB: 978-0-8031-5512-1
ISBN-13: 978-0-8031-3408-9