<p><p><strong>References:<br></strong><em>Aboshi et al. (1991)</em></p><p><strong>Method Summary</strong></p><p>Piezometers are used to measure and monitor pore water pressures before, during, and after installation of SCPs. Once installed, the piezometer should be read on a regular schedule. Piezometers are a good indicator of the progress and final product of improvement through SCPs. By assessing the excess pore water pressures in clayey soils before, during, and after SCP construction; the degree of consolidation can be determined. Using piezometers requires knowledge of the loading history of the site and excess pore water pressures that may exist before SCP installation.</p><p><strong>Accuracy and Precision</strong></p><p>Piezometers provide a good assessment of pore water pressure. Readings can be influenced by location of piezometer.</p><p><strong>Adequacy of Coverage</strong></p><p>Piezometers provide a limited area of coverage. Multiple piezometers are required to provide a site profile of pore water pressures.</p><p><strong>Implementation Requirements </strong></p><p>The installation of piezometers is not trivial. Improper installation of piezometers may greatly affect the accuracy of the readings. Upon installation, the process to read piezometers is simple.</p><p><strong>General Comments</strong></p><p>Piezometers are typically only used for sites with cohesive soils where a significant amount of settlement is expected after installation of SCPs and placement of service load. By monitoring the pore water pressures, the stability of the site can be assessed. Pore pressure measurements can be used to indirectly monitor the rate of settlement.</p></p>