<p><p><figure id='attachment_3555' style='max-width:624px' class='caption aligncenter'><img class="wp-image-3555 size-full" src="https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/…; alt="Photograph of rapid impact compaction rig." width="624" height="257" /><figcaption class='caption-text'> Rapid Impact Compaction rig. (Simpson et al.

Reference(s):
Kristiansen and Davies (2003)
Kristiansen and Davies (2004)
Personal communication, O’Malley (2010)
SAICE (2006)
Serridge and Synac (2006)
Simpson et al. (2008)
Woodward (2004)

<p><p><figure id='attachment_3553' style='max-width:640px' class='caption aligncenter'><img class="wp-image-3553 size-full" src="https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/…; alt="Photograph of trench constructed to dampen vibration effects of using rapid impact compaction." width="640" height="480" /><figcaption class='caption-text'> Excavated tren

<p><p><strong>References:<br></strong><em>Braithwaite and du Preez (1997)<br>Building Research Establishment (2003)<br>Kristiansen and Davies (2003)<br>Kristiansen and Davies (2004)<br>SAICE (2006)<br>Serridge and Synac (2006)<br>Simpson et al. (2008)</em></p><p><strong>Method Summary</strong></p><p>This method tests the improvement resulting from RIC by using in-situ penetration test results, from SPT, CPT, Becker Penetration Test (BPT) or Dynamic Probe (DP) tests.

<p><p><strong>References:<br></strong><em>Braithwaite and du Preez (1997)<br>Simpson et al. (2008)</em></p><p><strong>Method Summary: </strong></p><p>Level surveys are used to measure the penetration depth associated with each compaction point.

<p><p><strong>References:<br></strong><em>Building Research Establishment (2003)<br>Kristiansen and Davies (2004)<br>SAICE (2006)<br>Simpson et al. (2008)</em></p><p><strong>Method Summary</strong></p><p>The RIC employs an on-board computer to control the compaction process, set termination criteria, and record critical data.

<p><p><strong>References:<br></strong><em>SAICE (2006)</em></p><p><strong>Method Summary</strong></p><p>Piezometers are used to measure the hydraulic head in the ground. In some instances, it is advisable to install piezometers to monitor the water table during compaction activities (SAICE 2006).

<p><p><strong>References:<br></strong><em>Braithwaite and du Preez (1997)<br>Serridge and Synac (2006)</em></p><p><strong>Method Summary</strong></p><p>The plate load test uses a steel bearing plate and a hydraulic jack to apply a known load and measures the resulting surface deflection. The tests results can be used to determine the modulus of subgrade reaction.

<p><p><figure id='attachment_3560' style='max-width:1384px' class='caption aligncenter'><img class="wp-image-3560 size-full" src="https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/…; alt="Photograph showing a tamper performing the Rapid impact compaction (RIC) technique." width="1384" height="966" /><figcaption class='caption-text'> Rapid impact compaction