First Applications of the SAVE Compozer Method (Non-Vibratory Stone Columns) for Soil Densification in the U.S.

The Vibro-Replacement Method, also known as Stone Columns is one of the most prevalent liquefaction mitigation measure used in the U.S. However, difficulties have been encountered occasionally when applying this method in urban or residential environments because of the potential for negative impacts such as noise and vibration on project neighbors, and the potential for structural damage when it is applied too close to the exiting structures. The SAVE (Silent, Advanced, Vibration-Erasing) Compozer is a newly developed Non-Vibratory Replacement method that does not induce vibration and creates very little noise. The same degree of densification can be achieved when using the SAVE Compozer as can be achieved with conventional Vibro-replacement without the negative impacts of noise or vibration. This paper presents case histories of the first two applications of the SAVE Compozer in the U.S. including verification results of densification performance and vibration monitoring records, together with an overview of the SAVE Compozer method including densification concept, equipment, and execution.