<p><p><strong>Reference(s):</strong></p><p><em>HPaylor et al. (2008)</em></p><p><strong>Method Summary</strong></p><p>Strain gages and extensometers attached directly to the geosynthetic reinforcement provide a continuous record of the strain in the geosynthetic. The strain in the geosynthetic is a design consideration both during construction and long term. A design parameter can be directly measured by attaching strain gages and extensometers to the geosynthetic.</p><p><strong>Accuracy and Precision</strong></p><p>The strain gages and extensometers do not provide a direct indication of the quality of construction.</p><p><strong>Adequacy of Coverage</strong></p><p>Each strain gage and extensometer can only measure one point. In order to provide an increased level of reliability, many devices are required as part of the QC/QA program.</p><p><strong>Implementation Requirements</strong></p><p>Utilizing strain gages and extensometers attached to geosynthetic reinforcement requires specialized training.</p><p><strong>General Comments</strong></p><p>Strain gauges and extensometers allow for monitoring performance of the geosynthetic both during construction and long term. This method allows a design parameter to be measured during construction.</p></p>