Foundex conducts Shelby tube sampling as part of programs where recovery of relatively undisturbed soil samples is required in cohesive deposits. Shelby tube sampling is carried out using thin‑wall steel tubes advanced into suitable formations to support laboratory testing and detailed soil characterization.
Sampling may be performed using push‑type or piston‑type Shelby tube systems, with the method selected based on soil conditions, borehole stability, and project requirements. Piston sampling techniques may be used where additional control is desired to reduce disturbance during tube advancement and sample recovery.
Shelby tube sampling is typically completed in conjunction with rotary drilling and casing advance procedures, with drilling practices coordinated to support sample recovery and integrity. Retrieved samples are handled in accordance with project specifications.