Unload-reload cycles induce additional non-uniform internal axial loads within the pile which complicate interpretation of the strain gage data and increase the potential for errors. Attempts to maintain a constant top load during the hold period can lead ...

Accurate representation of the geotechnical resistance distribution is critical in evaluating the performance of piles and pile groups for design. A current practice is to infer the geotechnical resistance distribution based on measured changes in strain during ...

Drilled displacement piles (also known as augured cast-in-place displacement piles or augured, pressure-injected displacement piles) are installed by the displacement of soil and subsequent placement of cement grout within the evacuated volume. Depending on ...

This manual presents the state-of-the-practice for design and construction of continuous flight auger (CFA) piles, including those piles commonly referred to as augered cast-in-place (ACIP) piles, drilled displacement piles, and screw piles. CFA pile types, ...

This paper examines the conditions prior to and following the installation of drilled displacement piles at sandy sites using the cone penetration test. The data support that the installation of drilled displacement piles results in a substantial increase ...

Five augered cast-in-place piles bearing in a stiff Coastal Plain formation of South Carolina were load tested using the conventional top-loaded setup. Four of the five test piles failed well below the predicted ultimate compressive capacity. Interpretation ...