A review on models for the prediction of the diameter of jet grouting columns

Jet grouting is a known ground improvement technique largely used worldwide for different applications. One of the major limitations of this technique is mainly related to obtaining good predictions of the geometry of the final grouted body, as it is a function of the injection parameters and soil properties. Over the years, many studies have been conducted and few models and design methodologies have been developed to obtain more accurate predictions. A short review on some models found in the literature with a theoretical background is provided in this paper, highlighting the advantages and the limitations of each approach presented. A brief overview on emerging approaches is presented as well.