<p><p><strong>References:<br></strong><em>Collin and Cowell (1998)<br>Lazarte et al. (2015)<br>Porterfield, Cotton, and Byrne (1994)<br>Rogbeck et al. (2003)</em></p><p><strong>Method Summary</strong></p><p>This method tests the strength of an individual soil nail by applying a constant specified load to a nail and measuring any movements of the nail. Creep tests typically load a sacrificial nail until failure (quantified by an amount of movement) at constant load.</p><p><strong>Accuracy and Precision</strong></p><p>This is a highly accurate and precise test which is frequently relied on for screw-in soil nailing.</p><p><strong>Adequacy of Coverage</strong></p><p>For creep testing, non-production soil nails are tested as a representation for the rest of the site. Depending on the site conditions, several tests may be required.</p><p><strong>Implementation Requirements </strong></p><p>Some experience is necessary and may require a significant amount of time to perform. A creep Test is usually performed as one of the loading increments during verification and proof testing.</p><p><strong>General Comments</strong></p><p>Creep testing helps to ensure that the nails being installed in the slope have acceptable durability. The durability of the nails help to confirm a stable wall and slope is in place which is able to support its service loads with acceptable (if any) deformations for its service life. Creep testing is used for both method and performance approach specifications.</p></p>