ABSTRACT
Jet Grouting is a ground improvement technique which has been largely used worldwide. Its versatility and advantages justify its popularity, while the difficulties one can find when defining the injection mechanism and the phenomena involved motivate the use of empirical approaches to predict the properties of the treated (or grouted) volume. It is recognized the interest on developing new designing tools coupling the geometry prediction and the displacements induced to the soil by the jet. Some studies have reported promising results when numerical particle methods are utilized. In this study the capabilities and limitations of Uniform Generalized Interpolation Material-Point (uGIMP) Method to handle a water-jet injection into a target soil is analyzed. Simulations were performed for 3 initial jet velocities (50, 100, and 150 m/s) typical of jet grouting injections, where the target soil was a soft clay. Improvements to be considered for future developments are identified and reported.
