AASHTO TP 100-12 (2018) PDF Download

The AASHTO TP 100-12 (2018) standard outlines procedures for testing the behavior characteristics of vertical or inclined deep foundation elements when subjected to internally applied axial static load. The standard applies to all deep foundations that function similarly to bored piles, regardless of their method of construction and installation.

It should be noted that although bidirectional load testing has been performed successfully on driven piles, this standard does not cover the installation and procedural differences associated with bidirectional load testing of driven piles.

The standard establishes minimum requirements for bidirectional testing of deep foundation elements under controlled application of static axial compressive load. However, deviations, deletions, or additions to the requirements of the standard must be approved by the engineer responsible for the foundation design.

Additionally, it is important to acknowledge that plans, specifications, or provisions prepared by a qualified engineer may impose additional requirements and procedures to tailor the test program to specific objectives.

The standard emphasizes that in order to determine the long-term performance of the foundation, the duration of each load step application may need to be extended, and the test results may require additional interpretation.

Furthermore, a qualified engineer must design and approve all loading apparatus, loaded members, and test procedures. It is worth noting that the method used to collect, calculate, or record data in this standard does not directly determine the accuracy of the data's application in design or other uses.