<p><p><strong>References:<br></strong><em>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 over time. 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 method that tests actual field behavior under loading.</p><p><strong>Adequacy of Coverage</strong></p><p>For creep testing, non-production nails are tested as a representative for the rest of the site. Depending on the site conditions, a varying number of tests may be required.</p><p><strong>Implementation Requirements </strong></p><p>Some experience is necessary and the tests require a significant amount of time to perform.</p><p><strong>General Comments</strong></p><p>This method helps to ensure that the nails being installed in the slope have acceptable long-term pullout capacity. The long-term pullout capacity of the nails is an indication of the nail’s ability to support its service loads with acceptable (if any) deformations for its service life.</p></p>