Shelby sampler0 pages

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Shelby sampler

CLOSED SAMPLER

OPEN SAMPLER

Main features
A Shelby sampler consists of a stainless steel cylinder whose external diameter
is 88.9 mm (3.49 in) and internal diameter 85 mm (3.35 in). The overall length
is 700 mm (27.56 in) and the working length is 600 mm (23.6 in). The final
section has a sharp profile. This sampler is used to take samples of undisturbed
soil in cohesive grounds (silts and clays) for lab tests (even sophisticated ones).
A single pressure driving is recommended as percussion can disturb the samples. If sampling is performed at a certain depth, it is necessary to make a prehole with worm screws having a suitable diameter (external diameter 100 mm–
3.93 in) by means of an optional rotation head. To make a correct sampling it is
necessary to ascertain that there are no wall landslides or debris at the bottom
of the hole.

The in situ testing world