<p><p><strong>References:<br></strong><em>Al-Homoud and Degen (2006)</em></p><p><strong>Method Summary</strong></p><p>Stone consumption during construction can be monitored to ensure that the volume of stone installed is at least as large as the volume determined by the minimum diameter, length, and density. This method does not ensure uniform diameter over the length of the column. Weak strata will lead to an increase in column diameter at that depth, and therefore an increase in stone consumption. Conversely, a decrease in stone consumption indicates caving of the hole and/or insufficient displacement/replacement of the native ground.</p><p><strong>Accuracy and Precision</strong></p><p>Stone consumption monitoring provides a good indication of the volume of stone installed.</p><p><strong> </strong><strong>Adequacy of Coverage</strong></p><p>Stone consumption measurements are typically taken in 5-foot increments, which results in a profile of stone vs. depth.</p><p><strong>Implementation Requirements </strong></p><p>Stone consumption monitoring can easily be implemented by observing and measuring the amount of stone inserted into the hole.</p><p><strong>General Comments</strong></p><p>Stone consumption monitoring helps ensure proper column geometry and density, which is important for all stone column applications.</p></p>