<p><p><h2>Preferred Design Procedure</h2>Rapid Impact Compaction (RIC) lacks formal design procedures. No FHWA design guidance for RIC currently exists. A specialty contractor, rather than a design engineer, typically performs the majority of RIC design.</p><p>In current practice, the RIC design method that is utilized is referred to as the “direct measurement of improvement depth following construction.” This design method is not proprietary. A summary of this method is included in this document.</p></p>
<p><p><h2>References</h2>Kristiansen, H. and Davies, M. (2003), “Results of Becker Penetration Testing, Chilliwack Fire Hall”, AMEC Earth & Environmental, Inc., Burnaby, B.C., Canada, 10p.</p><p>Kristiansen, H. and Davies, M. (2004), “Ground Improvement Using Rapid Impact Compaction”, Proceedings from the 13th World Conference on Earthquake Engineering, Vancouver, B.C., Canada, Paper No. 496.</p><p>SAICE (2006). “Innovative new ground improvement method used controlled dynamic compaction.” Civil Engineering, 14(5), 3-6.</p><p>Serridge, C.J. and Synac, O. (2006). “Application of the Rapid Impact Compaction (RIC) technique for risk mitigation in problematic soils.” Proceedings of IAEG2006, London, Paper No. 294.</p><p>Simpson, L.A., S.T. Jang, C.E. Ronan and L.M. Splitter (2008) “Liquefaction Potential Mitigation using Rapid Impact Compaction.” Proceedings of the Conference of Geotechnical Earthquake Engineering and Soil Dynamics IV, Sacramento, CA, Paper No. 181.</p><p>Woodward, J. (2005). An Introduction to Geotechnical Processes. Glasgow, Scotland: Bell & Bain Ltd.</p></p>