<p><p><h2>Summary of Example Specifications</h2>Two of the reviewed specifications have been selected for inclusion in this document. These documents are representative of typical deep dynamic compaction specifications but should be tailored for project specific conditions and adjusted to include appropriate and relevant details found in the <em>Design Guidance </em>and <em>QC/QA Procedures </em>documents.<br><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> Typical Performance Specification</div><strong>Reference(s):<br></strong><em>Lukas (1995)</em></p><p>The “Typical Performance Specification” from Lukas (1995) provides clear and logical instructions for completing the work. This specification is based on measuring actual performance after construction and the document has very few procedural restrictions. The specification does not require overly complex construction methods, allowing many contractors with the required qualifications to fairly bid on the project. This particular specification is written specifically for landfill densification and the quality control procedures found within are limited accordingly. Payment is based on square meters of dynamic compaction, regardless of the number of passes required to reach the minimum applied energy.<br><div class="grayed-title subsection"><strong>Specification Name/Number:</strong> Dynamic Compaction for Highway Embankment</div><strong>Source(s):<br></strong><em>North Carolina DOT</em></p><p>The North Carolina DOT specification is clear and easy to follow with no conflicting statements. This is a method specification that does not require the contractor to take any risk of the compaction not meeting the performance requirements of the project. With no overly complex construction methods required, numerous contractors with adequate experience may bid on the project. The number of drops for each pass is not specified, but estimates can be made from the detailed test program requirements and project geotechnical conditions. The specification calls for monitoring, testing and safety programs during construction. Payment for dynamic compaction is based on the number of drops, select material is paid for by the ton, and excavation material by the cubic yard.</p></p>