Diameter Prediction of Columns Created with Single and Double Jet Grouting Systems

Abstract

Jet grouting is a very popular ground improvement technique used for various applications. The present study is particularly devoted to the role of coating of the injected fluid with a surrounding annular jet of air, as is typically achieved in a double fluid injection system of jet grouting. Different simulations were performed with this purpose using a finite element code. The results of the analysis were expressed in terms of longitudinal and transverse profiles of velocity within the jet mass. Finally, a comparison between single and double fluid effect on the diameter of the columns is presented