Characteristics of Rapid Impact Compaction Method in Improvement of Subgrade Soils

There are several methods of soil improvement. In present study, rapid impact compaction (RIC) method is illustrated. The method is based on falling a 7 to 9 tons tamper from a height of about 1 meter on the soil. Due to the compaction of thick layer compared to the conventional static methods, speed of improvement is much faster in rapid impact compaction. In present paper, fundamentals of the method, definitions and limitations besides its characteristics and applications are illustrated. Moreover, design methods and compaction patterns besides its verification methods are investigated.