<p><p><strong>References:<br></strong><em>Burke et al. (2000a, 2000b)</em></p><p><strong>Method Summary</strong></p><p>A survey of each column should be performed to ensure the columns are in the correct location. This is usually done by conventional surveying methods. In addition, the elevation of the jetting nozzle should be measured regularly during the grouting operation, and the final elevation of the top of the column should be checked to ensure the correct elevation has been achieved.</p><p><strong>Accuracy and Precision</strong></p><p>This method is accurate and precise.</p><p><strong> </strong><strong>Adequacy of Coverage</strong></p><p>Each column only requires one to two survey points to be accurately located. All columns should be surveyed.</p><p><strong> </strong><strong>Implementation Requirements </strong></p><p>Location surveys can be easily performed both by conventional surveying and automated techniques.</p><p><strong> </strong><strong>General Comments</strong></p><p>Location surveys can be useful in all jet grouting operations.</p></p>